FR2975593A1 - COMPOSITION COMPRISING ALCOXYSILANE AND MODIFIED STARCH AND USE THEREOF IN COSMETICS - Google Patents

Abstract

The invention relates to a particularly cosmetic composition comprising: (i) one or more alkoxysilanes, and (ii) one or more starches modified with an acid or an acid derivative. The invention also relates to a cosmetic process for treating keratin materials, with this composition as well as the use of this composition for the care and / or shaping of keratin materials.

Description

Composition comprising an alkoxysilane and a modified starch and its use in cosmetics

The present invention relates to a particularly cosmetic composition containing at least one alkoxysilane and at least one starch modified with an acid or an acid derivative. Keratin fibers can undergo aggression of various origins such as mechanical aggression (disentangling, blow drying) or chemical (coloring, permanent). These aggressions have repercussions on the qualities of the fiber and will induce a difficult disentangling during the washing of the hair and a non-smooth, dry and uneven surface when the hair is dry. Hair is difficult to comb and lacks softness. The presently proposed conditioning compositions comprise essentially cationic surfactants, fats, silicones and cationic polymers. They facilitate the disentangling by a softening of the keratin fiber and bring shine, softness and regularity to the dried hair. However, these effects are not sustainable for shampoos and the application of these compositions is essential for each washing act to treat and facilitate the disentangling of the hair. Furthermore, it has been found that consumers are increasingly in search of care compositions which not only make it possible to condition the hair in a suitable manner but also to provide satisfactory styling effects. In particular, individuals with fine or curly hair are generally in search of care products that provide styling effects bringing mass, body and volume to fine hair and curly hair curl design. In FR2783164, it has already been proposed to use alkoxysilanes to provide hair styling properties. However, the aminosilane compositions have storage stability problems as well as incompatibilities with components widely used in cosmetics such as certain classes of surfactants and thickeners. As a result, thickening of this type of compositions is difficult. In addition, the results obtained are not completely satisfactory both in terms of the cosmetic properties themselves and their durability.

There is therefore a need for more powerful conditioning and styling compositions. The Applicant has surprisingly discovered that compositions comprising at least one ionic starch and at least one alkoxysilane make it possible to solve the problems mentioned above. More specifically, the subject of the invention is a composition, in particular a cosmetic composition comprising: (i) one or more alkoxysilanes, and (ii) one or more starches modified with an acid or an acid derivative. Such a composition has a satisfactory thickness and is more stable over time. It spreads easily on the hair, is easily removed with water leading to hair, shiny, smooth and soft, disentangling easily. The composition provides densification of the hair (more hair prints), body, volume, ease of shaping especially fine hair. Finally, the compositions according to the invention also make it possible to impart styling effects to curly hair, in particular in terms of drawing and control of loops. The good styling and cosmetic properties persist over time even after several shampoos.

The invention also relates to a non-therapeutic cosmetic treatment method for treating keratin materials, especially the hair, comprising the application to said materials of a composition as described above. The subject of the invention is also the use of a composition according to the invention for the care and shaping of keratin materials, in particular keratinous fibers, and in particular human keratinous fibers such as the hair. The composition according to the invention comprises one or more alkoxysilanes. The alkoxysilanes present in the composition according to the invention are preferably chosen from organosilanes comprising one, two or three silicon atoms, preferably one or two silicon atoms. The alkoxysilanes present in the composition according to the invention may comprise two or more hydrolyzable or hydroxyl groups per molecule. The hydrolyzable groups are preferably alkoxy, aryloxy or halogen groups. They may optionally comprise other chemical functions such as saline or non-salified functions, salified or unsalified carboxylic acid, salified or unsalified sulphonic acid, salified or unsalified phosphoric acid, salified or non-salified sulfuric acid, aldehyde, polyalcohols or polyethers. Preferably, the alkoxysilanes of the invention comprise one or more amine or aldehyde functions.

Even more preferentially, the alkoxysilanes of the invention comprise one or more amine functional groups. When the alkoxysilane present in the composition according to the invention comprises one or more amine functional groups, these are preferably primary amines (-NH 2) and / or secondary amines (-NHR).

According to a particular embodiment, the alkoxysilane (s) present in the composition according to the invention are chosen from the compounds of formula (I): R 1 / R 4 R (Si-R 5 (1) R 2 R 6 wherein: R4 is halogen, ORa or Ria, R5 is halogen, ORb or R2a, R6 is halogen, ORc or R1a, R1 and R2 are independently of each other; , a hydrogen atom, a saturated or unsaturated hydrocarbon group, linear or branched, optionally substituted by an amine function, which itself may carry a substitution with a saturated or unsaturated hydrocarbon group, linear or branched, which may optionally carry an amine function; preferably, R 1 or R 2 necessarily denoting a hydrogen atom, R 3, R a, R b, R c, R 1a, R 2a and R 1 represent, independently of one another, a linear or branched, saturated or unsaturated hydrocarbon-based group optionally bearing groups ch Additional imics such as acidic or amine groups, Ra, Rb and Rc may further denote hydrogen, and at least two of R4, R5 and R6 groups being different from Ria, R2a and R3a groups. Preferably, at least two of the groups Ra, Rb and Rc are different from hydrogen. Preferably, the groups R1, R2, Ra, R1a, R2a, R3a, Rb and Rc are chosen from C1-C12 alkyl, C5-C14 aryl and C5-C14 alkyl (C1-C8) aryl radicals. and C -C aryl (C 5 -C 14) alkyl.

Preferably, the group R3 is chosen from C1-C12 alkylene radicals, optionally substituted by an amino group, C5-C14 arylene, C5-C14 alkylene (C1-C8) arylene, and (C5-C14) arylene alkylene groups. in C1-C8. According to one particular embodiment, the alkoxysilane (s) corresponding to formulas (I) are preferably 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane, and 3- (2-aminoethylamino) propylmethyldiethoxysilane. According to another embodiment, the alkoxysilane (s) used according to the invention are chosen from the compounds of formula (II):

(R21O) x (R22) ySi- (B) p- [NR23- (Ba) pa] g- [NR23, - (Bb) pb] ga-Si (R22a) an (OR21a) xa (II) wherein: R21, R22, R21a and R22a each represent, independently of one another, a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups selected from groups ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl, x is an integer ranging from 1 to 3, y = 3-x, xa is an integer ranging from 1 to 3, y = 3-xa, p = 0 or 1, pa = 0 or 1, pb = 0 or 1, q = 0 or 1, ga = 0 or 1, it being understood that at least q or qa is different from zero, B, Ba and Bb each independently represent a divalent linear or branched C 1 -C 20 alkylene radical. R23 and R23a each independently represent a hydrogen atom or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether groups, C1-C20 alcohol ester, amine, carboxyl, C 6 -C 30 aryl, hydroxyl or carbonyl, or an aromatic ring, heterocyclic or not, optionally substituted by one or more C 1 -C 20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups.

Preferably, R23 and R23a represent a hydrogen atom. As previously explained, R21, R22, R21a and R22a each independently represent a hydrocarbon chain. By hydrocarbon chain is preferably meant a chain having 1 to 30 and preferably 1 to 10 carbon atoms. Preferably, R21 = R21a; R22 = R22a; x = xa; y = ya; p = pa; B = Ba; q = 1 etga = 0.

The alkoxysilane (s) of formula (II) may also have the following characteristics, taken alone or in combination: R21, R22, R21a and R22a, which may be identical or different, represent a C1-C4 alkyl; = 1; B and Ba, which are identical or different, represent linear C 1 -C 4 alkylene. For example, the alkoxysilane (s) are chosen from bis [3- (triethoxysilyl) propyl] amine of formula (CH 3 CH 2 O) 3 -Si (CH 2) 3 NH (CH 2) 3 Si (OCH 2 CH 3) 3 proposed by Fluorochem, bis [trimethoxysilylpropyl] amine of formula (CH 3 O) 3 -Si (CH 2) 3 NH (CH 2) 3 Si (OCH 3) 3 provided by Gelest, bis [methyldiethoxysilylpropyl] amine of formula (CH 3 CH 2 O) 2 CH 3 Si (CH 2) 3 NH (CH 2 ) 3SiCH3 (OCH2CH3) 2 provided by Gelest and bis [3-trimethoxysilylpropyl] ethylenediamine of formula (CH3O) 3Si (CH2) 3NH (CH) 2NH (CH2) 3Si (OCH3) 3 provided by Gelest.

Among these compounds, bis [3- (triethoxysilyl) propyl] amine and bis [methyldiethoxysilylpropyl] amine are preferred. According to another embodiment of the invention, the alkoxysilane (s) are chosen from compounds of formula (III): (R28) i (R240) e (R25) f -Si - (E) g (Ea) in which: R24 and R25 each independently represent, from each other, a linear or branched, saturated or unsaturated hydrocarbon chain, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups; selected from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups, e = 2 or 3; f = 3-e; g = 0or1; d = 0or1; E and Ea each independently represent a divalent linear or branched C1 to C20 alkylene radical, R26 and R27 each independently represent hydrogen or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted; by one or more ether, C1-C20 alcohol ester, amine, carboxyl, alkoxysilane, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic heterocyclic or non-heterocyclic ring optionally substituted with one or more ester groups; C1-C20 alcohol, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl, i is an integer ranging from 0 to 4, h is 0 or 1, the R28 group (s) independently represent hydrogen or saturated or unsaturated hydrocarbon chain, linear or branched, preferably C1-C10, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether, C1-C20 alcohol, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic ring, heterocyclic or non-heterocyclic, optionally substituted with one or more ester groups; C1-C20 alcohol, amine, amide, carboxyl, hydroxyl, carbonyl or acyl. As previously explained, R24 and R25 each independently represent a hydrocarbon chain. By hydrocarbon chain is preferably meant a chain having 1 to 30 and preferably 1 to 10 carbon atoms.

Similarly, R26 or R27 may represent a hydrocarbon chain. In this case, it is preferable to mean a chain comprising 1 to 30 and preferably 1 to 10 carbon atoms. Preferably, the aromatic ring has from 6 to 30 carbon atoms. Even more preferentially, it denotes an optionally substituted phenyl radical. The alkoxysilane (s) of formula (III) may have the following characteristics, taken alone or in combination: - R24 is a C1-C4 alkyl, - e = 3, g = j = 1; i = h = 0, R26 and R27 independently represent hydrogen or a group selected from C1-C4 alkyl, C1-C4 hydroxyalkyl and C1-C4 aminoalkyl. Preferably, R 26 or R 27 denote a hydrogen atom. In particular, the alkoxysilane (s) of formula (III) may be chosen from 3- (m-aminophenoxy) propyltrimethoxysilane, of formula: ## STR2 ##

p-aminophenyltrimethoxysilane, of formula: H 2 N Si (OCH 3) 3 - N- (2-aminoethylaminomethyl) phenethyltrimethoxysilane, of formula: ## STR2 ## the alkoxysilane (s) which can be used in the compositions according to the present invention correspond to the formula (IV): ## STR2 ## in which: R 1 and R 2, independently of one of the other are selected from hydrogen and ethyl, propyl and aminoethyl, R3 is selected from ethyl, propyl and methylphenethyl, R4, R5 and R6 independently of one another are selected from methyl groups, In one embodiment of the invention, the alkoxysilanes of the invention comprise one or more primary or secondary amine functions, Preferably, the alkoxysilanes of the invention are chosen from the compounds of formula (I), ( III) and (IV) and more particularly the following compounds: 3-aminopro pyltriethoxysilane (APTES), 3-aminoethyltriethoxysilane (AETES), 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and N- (2-aminoethylaminomethyl) phenethyltrimethoxysilane of the formula: (CH 3 O) 3 Si- ( More particularly the alkoxysilanes of the invention are chosen from the compounds of formula (I), in particular 3-aminopropyltriethoxysilane (APTES), 3-aminoethyltriethoxysilane (AETES), 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and preferably the alkoxysilane is 3-aminopropyl triethoxysilane (APTES)

The alkoxysilane (s) may be present in the composition according to the invention in a content ranging from 0.05% to 20%, in particular from 0.1% to 10%, preferably from 0.2% to 5%, relative to total weight of the composition.

The composition according to the invention comprises one or more starches modified with an acid or an acid derivative.

The starch (s) usable in the present invention are more particularly macromolecules in the form of polymers consisting of elementary units which are anhydroglucose units. The number of these motifs and their assembly make it possible to distinguish between amylose (linear polymer) and amylopectin (branched polymer). The relative proportions of amylose and amylopectin, as well as their degree of polymerization, vary according to the plant origin of the starches. The starch molecules used in the present invention may be from a plant source such as cereals, tubers, roots, vegetables and fruits. Thus, the starch (s) may come from a vegetable source selected from corn, peas, potato, sweet potato, banana, barley, wheat, rice, oats, sago, tapioca and sorghum. The starch is preferably from the potato. It is also possible to use the hydrolysates of the starches mentioned above. The starches are generally in the form of a white powder, insoluble in cold water, the size of the elementary particles ranges from 3 to 100 microns. The starches used in the composition of the invention may be chemically modified by one or more of the following reactions: pregelatinization, oxidation, crosslinking, esterification, heat treatments. In particular, these reactions can be carried out as follows: - pregelatinization by bursting the starch granules (for example drying and cooking in a drying drum); oxidation by strong oxidants leading to the introduction of carboxyl groups into the starch molecule and to the depolymerization of the starch molecule (for example by treating an aqueous starch solution with sodium hypochlorite); crosslinking with functional agents capable of reacting with the hydroxyl groups of the starch molecules which will thus be bonded together (for example with glyceryl and / or phosphate groups); alkaline esterification for the grafting of functional groups, in particular C1-C6 acyl (acetyl), hydroxyalkyl C1-C6 (hydroxyethyl, hydroxypropyl), carboxyalkyl.

The acids or acid derivatives may be acids or derivatives of mineral or organic acids. The term "derivatives" means salts of inorganic or organic acids, chlorides of organic acids, anhydrides of organic acids, esters of organic acids and inorganic oxychlorides.

In particular, it is possible to obtain, by means of crosslinking with phosphorus compounds, mono-starch phosphates (of the Am-O-PO- (OX) 2 type), diamidon phosphates (of the Am-O-PO- (OX) -O-Am type). or even triamidon (of the type Am-O-PO- (O-Am) 2) or mixtures thereof.

X denotes in particular alkali metals (for example sodium or potassium), alkaline earth metals (for example calcium, magnesium), ammonium salts, amine salts such as those of monoethanolamine, diethanolamine, triethanolamine, 3-aminopropanediol-1,2, ammonium salts derived from basic amino acids such as lysine, arginine, sarcosine, ornithine, citrulline. The phosphorus compounds may be, for example, sodium tripolyphosphate, sodium orthophosphate, phosphorus oxychloride or sodium trimetaphosphate. It is thus possible to use starch phosphates, in particular hydroxypropylated phosphates, or compounds rich in starch phosphate, in particular hydroxypropylated, such as the products proposed under the references PREJEL VA-70-T AGGL (hydroxypropylated manganese diamidon phosphate gelatinized or PREJEL TK1 (gelatinized cassioform diamidon phosphate) or PREJEL 200 (gelatinized acetylated manioc diamidon phosphate) by the company AVEBE or STRUCTURE ZEA by NATIONAL STARCH (hydroxypropylated cornstarch phosphate gelatinized). When the starches are chemically modified by an esterification reaction, carboxyalkyl starches may be obtained, as indicated above. The carboxyalkyl starches are preferably carboxyalkyl (CIC4) starches and their salts and more particularly carboxymethyl starches and their salts.

The salts are especially alkali metal or alkaline earth metal salts such as Na, K 1/2, Li, NH 4, a quaternary ammonium or an organic amine such as mono, di or triethanolamine. The carboxyalkyl starches are obtained by grafting carboxyalkyl groups on one or more alcohol functions of the starch, in particular by reaction of starch and sodium monochloroacetate in an alkaline medium. The carboxyalkyl groups are generally attached via an ether function, more particularly to carbon 1. The degree of substitution is preferably from 0.1 to 1 and more particularly from 0.15 to 0.5. The degree of substitution is defined according to the present invention as being the average number of hydroxyl groups substituted by an ester or ether group (in this case an ether for carboxymethyl starches) per monosaccharide unit of the polysaccharide. The carboxyalkyl starches preferably comprise units of the following formula: ## STR2 ## where X denotes a hydrogen atom, an alkali metal or alkaline earth metal such as Na, K 1/2, Li, NH 4, a quaternary ammonium or an organic amine. Preferably X denotes an Na + ion.

The carboxyalkyl starches which can be used according to the present invention are preferably the non-pregelatinized carboxyalkyl starches. The carboxyalkyl starches which can be used according to the present invention are preferably partially or completely crosslinked carboxyalkyl starches. The carboxyalkyl starches that may be used according to the present invention are preferably sodium salts of carboxyalkyl starches, in particular a sodium salt of potato carboxymethyl starch sold, for example, under the name PRIMOJEL by the company DMV International. More than 95% of the particles of this starch have a diameter of less than 100 microns and more particularly less than 65 microns. It is also possible to use starch acetates or acetylated starches in the invention, the acetylation being possible in particular with acetic anhydride or with vinyl acetate. As starch acetate can be mentioned PERFECTAMYL AC products proposed by the company AVEBE. According to the invention, it is also possible to use amphoteric starches, these amphoteric starches contain one or more anionic groups and one or more cationic groups. The anionic and cationic groups may be bonded to the same reactive site of the starch molecule or to different reactive sites; preferably they are linked to the same reactive site. The anionic groups may be of carboxylic, phosphate or sulfate type and preferably carboxylic. The cationic groups may be of primary, secondary, tertiary or quaternary amine type. The amphoteric starches are in particular chosen from compounds of the following formulas: R 'R

1 CH-CH-000M NCH-CH-COOM R 'R (V) COOM R

Embedded image St-O- (CH 2) n N St-O- (CH 2) n NR "R 'R" N 1 St-O-CH 2 CH-000M R' R "N 1 St-O-CH- CH 2 COOM formulas in which: St-O represents a starch molecule, R, identical or different, represents a hydrogen atom or a methyl radical, R ', identical or different, represents a hydrogen atom, a methyl radical; or a group -000H, n is an integer equal to 2 or 3, M, identical or different, denotes a hydrogen atom, an alkali metal or alkaline earth metal such as Na, K, Li, NH 4, a quaternary ammonium or an amine organic, R "represents a hydrogen atom or an alkyl radical having from 1 to 18 carbon atoms. These compounds are described in particular in US Pat. Nos. 5,455,340 and 4,017,460, which are incorporated by reference. As amphoteric starches, the starches of formula (V) or (VI) are particularly used. 2-chloroethylaminodipropionic acid-modified starches, that is to say the starches of formula (V) or (VI) in which R, R ', R "and M represent an atom, are used more particularly. and n is equal to 2. Mention may in particular be made potato starch modified with 2-chloroethyl aminodipropionic acid neutralized with sodium hydroxide, sold under the reference STRUCTURE SOLANACE by the company NATIONAL STARCH.

Preferably, one or more starches selected from starch phosphates and starch acetates will be used.

According to the invention, the starch (s) modified with an acid derivative may represent from 0.01% to 10% by weight, preferably from 0.1% to 10% by weight and more particularly from 0.5% to 5% by weight relative to the total weight of the composition. (VIII) The weight ratio of the amount of starch modified with an acid derivative to the amount of alkoxysilane is from 0.01 to 20, preferably from 0.05 to 10, more preferably from 0.1 to 5. .

The composition according to the invention may comprise water, one or more organic solvents or a mixture of water and one or more organic solvents, the organic solvents being preferably chosen from C1-C4 lower alcohols, such as ethanol, isopropanol, t-butanol or n-butanol; polyols such as glycerol, propylene glycol, dipropylene glycol and polyethylene glycols; and their mixtures. In the composition according to the invention, the water may be present in a content ranging from 10% to 95% by weight, relative to the total weight of the composition, and preferably ranging from 20% to 95% by weight. The composition according to the invention may further comprise one or more thickening agents different from the modified starches as described above. The thickening agent (s) may be chosen from fatty acid amides obtained from C 10 -C 30 carboxylic acid (monoisopropanol, diethanol or coconut monoethanol amide, oxyethylenated alkyl ether carboxylic acid monoethanolamide). ), cellulosic thickeners (hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its nonionic derivatives (hydroxypropylguar) and gums of microbial origin (xanthan gum, scleroglucan gum), nonionic starches and associative polymers . The associative polymer or polymers that may be used according to the invention are water-soluble polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules. Their chemical structure comprises hydrophilic zones, and hydrophobic zones characterized by at least one fatty chain preferably comprising from 10 to 30 carbon atoms. The associative polymer (s) which can be used according to the invention and which are different from the acrylic thickening polymers may be of anionic, cationic, amphoteric or nonionic type, such as the polymers sold under the names ELFACOS T210 and T212 by the company AKZO. Among all the additional thickening agents mentioned, the thickener (s) are preferably chosen from cellulose thickeners.

When present, the composition preferably comprises from 0.1 to 20% by weight, and more preferably from 0.2 to 10% by weight of additional thickening agent (s), relative to to the total weight of the composition. The composition according to the invention may further comprise one or more conditioning agents. By "conditioning agent" is meant according to the present invention any compound for improving the cosmetic properties of hair, particularly softness, detangling, touch, static electricity. Preferably, the conditioning agent is chosen from the group comprising cationic polymers, cationic surfactants, silicones such as organosiloxanes, linear or branched C8-C30 hydrocarbons, linear or branched C8-C30 fatty alcohols, esters of C 8 -C 30 fatty acids and of C 1 -C 30 alcohol and in particular esters of C 8 -C 30 fatty acids and of C 8 -C 30 fatty alcohol, esters of acid or of diacid in Cl -C7 and C8-C30 fatty alcohol, ceramides or ceramide analogues, and mixtures of these compounds. The term "cationic polymer" means a positively charged polymer when it is contained in the composition according to the invention. This polymer may carry one or more positive permanent charges or contain one or more cationizable functions within the composition according to the invention. The cationic polymer (s) that can be used as conditioning agents according to the present invention are preferably chosen from polymers containing primary, secondary, tertiary and / or quaternary amine groups that are part of the polymer chain or directly connected thereto, and having a molecular weight of between 500 and about 5,000,000 and preferably between 1,000 and 3,000,000. Among the cationic polymers, polyamines of the polyamine, polyaminoamide and quaternary polyammonium type may more particularly be mentioned. These are known products. They are for example described in French patents 2,505,348 and 2,542,997. Among these polymers, mention may be made of: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the units of the following formulas: ## STR5 ## wherein R 3 and R4, which may be identical or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, and preferably methyl or ethyl; R5, which may be identical or different, denote a hydrogen atom or a CH3 group; A, which may be identical or different, represent a linear or branched alkyl group having 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms; R6, R7, R8, which may be identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl group, and preferably an alkyl group having from 1 to 6 carbon atoms; X- denotes an anion derived from a mineral or organic acid such as a methosulphate anion, or a halide such as chloride or bromide. The copolymers of the family (1) may also contain one or more comonomer-derived units which may be chosen from the family of acrylamides, methacrylamides, diacetones acrylamides, acrylamides and methacrylamides substituted on the nitrogen by lower alkyls (C1-C4). ), acrylic or methacrylic acids or their esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, vinyl esters. Thus, among these copolymers of the family (1), mention may be made of: the copolymers of acrylamide and of dimethylaminoethyl methacrylate quaternized with dimethyl sulphate or with a dimethyl halide, such as that sold under the name HERCOFLOC by the company Hercules, the copolymers of acrylamide and of methacryloyloxyethyltrimethylammonium chloride described, for example, in the patent application EP-A-080976 and sold under the name BINA QUAT P 100 by the company CIBA GEIGY, the copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulphate sold under the name RETEN by the company HERCULES, - vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate copolymers quaternized or otherwise, such as the products sold under the name "GAFQUAT" by the company ISP such as "GAFQUAT 734" or "GAFQUAT 755 "or the products referred to as" COPOLYMER 845, 958 and 937 ". These polymers are described in detail in French Pat. Nos. 2,077,143 and 2,393,573, dimethylaminoethyl methacrylate / vinylcaprolactam / vinylpyrrolidone terpolymers, such as the product sold under the name GAFFIX VC 713 by the company ISP, vinylpyrrolidone copolymers. and methacrylamidopropyl dimethylamine sold in particular under the name STYLEZE CC 10 by the company ISP, and quaternized vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymers such as the product sold under the name "GAFQUAT HS 100" by the company ISP, and the crosslinked polymers of methacryloyloxyalkyl (C1-C4) trialkyl (C1-C4) ammonium salts such as the polymers obtained by homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl chloride, or by copolymerization of acrylamide with dimethylaminoethyl methacrylate quaternized with methyl chloride, homo or copolymerization followed by crosslinking with an olefinically unsaturated compound, in particular methylenebisacrylamide. It is more particularly possible to use a crosslinked acrylamide / methacryloyloxyethyltrimethylammonium chloride copolymer (20/80 by weight) in the form of a dispersion containing 50% by weight of said copolymer in mineral oil.

This dispersion is marketed under the name "SALCARE® SC 92" by the company CIBA. It is also possible to use a crosslinked homopolymer of methacryloyloxyethyltrimethylammonium chloride, for example dispersed in mineral oil or in a liquid ester. These dispersions are sold under the names "SALCARE® SC 95" and "SALCARE® SC 96" by the company CIBA. (2) polymers consisting of piperazinyl units and straight or branched chain alkylene or hydroxyalkylene divalent groups, optionally interrupted by oxygen, sulfur, nitrogen or aromatic or heterocyclic rings, as well as oxidation and / or quaternization of these polymers. Such polymers are in particular described in French Patents 2 162 025 and 2 280 361; (3) water-soluble polyaminoamides, prepared in particular by polycondensation of an acidic compound with a polyamine; these polyaminoamides may be crosslinked by an epihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, a bishalohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide or a oligomer resulting from the reaction of a bifunctional compound reactive with a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide, a epihalohydrin, a diepoxide or bis-unsaturated derivative; the crosslinking agent being used in proportions ranging from 0.025 to 0.35 moles per amine group of the polyaminoamide; these polyaminoamides can be alkylated or if they contain one or more tertiary amine functional groups, quaternized. Such polymers are described in particular in French patents 2 252 840 and 2 368 508 (4) polyaminoamide derivatives resulting from the condensation of polyalkylene polyamines with polycarboxylic acids, followed by alkylation with difunctional agents. Mention may be made, for example, of adipic acid dialkylaminohydroxyalkyldialkylenetriamine polymers in which the alkyl groups contain from 1 to 4 carbon atoms and preferably denotes a methyl, ethyl or propyl group, and the alkylene groups contain from 1 to 4 carbon atoms, and preferably denote the ethylene group. Such polymers are described in particular in French Patent 1,583,363. Among these derivatives, mention may be made more particularly of the adipic acid / dimethylaminohydroxypropyl / diethylene triamine polymers sold under the name "Cartaretine F, F4 or F8" by the company Sandoz. (5) polymers obtained by reacting a polyalkylene polyamine comprising two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids having from 3 to 8 carbon atoms. The molar ratio between the polyalkylene polyamine and the dicarboxylic acid being between 0.8: 1 and 1.4: 1; the polyaminoamide resulting therefrom being reacted with epichlorohydrin in a molar ratio of epichlorohydrin relative to the secondary amine group of the polyaminoamide of between 0.5: 1 and 1.8: 1. Such polymers are described in particular in the patents US Pat. Nos. 3,227,615 and 2,961,347. Polymers of this type are in particular sold under the name "Hercosett 57" by the company Hercules Inc. or under the name "PD 170" or "Delsette 101" by the company Hercules in the case of the adipic acid / epoxypropyl / diethylene triamine copolymer. (6) cyclopolymers of alkyl diallyl amine or of dialkyl diallyl ammonium such as homopolymers or copolymers comprising, as main constituent of the chain, units corresponding to formulas (X111) or (XIV): (CH2) k (CH2) k - (CH2) tCR12 C (R12) -CH2- (CH2) t CR12 C (R12) -CH

Wherein: k and t are 0 or 1, the sum k + t being equal to 1; R12 denotes a hydrogen atom or a methyl group; R10 and R11, independently of each other, denote an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group preferably has 1 to 5 carbon atoms, a lower amidoalkyl group (C1 -C4), or else R10 and R11 may designate, together with the nitrogen atom to which they are attached, heterocyclic groups, such as piperidinyl or morpholinyl; Y- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, phosphate. These polymers are described in particular in French patent 2,080,759 and in its certificate of addition 2,190,406.

R10 and R11, independently of one another, preferably denote an alkyl group having 1 to 4 carbon atoms. Among the polymers defined above, mention may be made more particularly of the homopolymer of dimethyldiallylammonium chloride sold under the name "Merquat 100" by the company Nalco (and its counterparts of low molecular weight average) and the copolymers of sodium chloride. diallyldimethylammonium and acrylamide sold under the name "MERQUAT 550". (7) the quaternary diammonium polymer containing recurring units having the formula (XV): embedded image wherein: R 13, R 14, R 15, and R16, which may be identical or different, are aliphatic, alicyclic, or arylaliphatic groups containing from 1 to 7 carbon atoms or lower hydroxyalkylaliphatic groups (C1-C4), or R13, R14, R15 and R16, together or separately, constitute with the nitrogen atoms to which they are attached, heterocycles optionally containing a second heteroatom other than nitrogen, or R13, R14, R15 and R16 represent a linear or branched C1-C6 alkyl group substituted with a nitrile group. ester, acyl, amide, or -CO-O-R17-D or -CO-NH-R17-D wherein R17 is alkylene having 1 to 10 carbon atoms and D is a quaternary ammonium group; Al and B1 represent polymethylenic groups containing from 2 to 20 carbon atoms which may be linear or branched, saturated or unsaturated, and which may contain, bound to or intercalated in the main chain, one or more aromatic rings, or one or more atoms oxygen, sulfur or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups, and X- denotes an anion derived from a mineral or organic acid; A1, R13 and R15 can form with the two nitrogen atoms to which they are attached a piperazine ring; furthermore, if Al denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene group, B1 may also denote a - (CH2) n -CO-D-OC- (CH2) p- group in which: n and p are integers varying from 2 to about 20, D denotes: a) a glycol residue of formula: -OZO-, where Z denotes a linear or branched hydrocarbon group, or a group corresponding to one of the following formulas: - (CH 2 -CH 2 -O) x-CH 2 -CH 2 - - [CH 2 -CH (CH 3) -O] y -CH 2 -CH (CH 3) - where x and y denote an integer of 1 to 4, representing a defined degree of polymerization and any one or any number from 1 to 4 representing an average degree of polymerization; b) a bis-secondary diamine residue such as a piperazine derivative; c) a bis-primary diamine residue of formula: -NH-Y-NH-, where Y denotes a linear or branched hydrocarbon group, or the divalent group -CH 2 -CH 2 -S-S-CH 2 -CH 2 -; d) a ureylene group of formula: -NH-CO-NH-. Preferably, X- is an anion such as chloride or bromide. These polymers have a number-average molecular weight generally of between 1000 and 100 000. Polymers of this type are described in particular in French patents 2,320,330, 2,270,846, 2,316,271, 2,336,434 and 2,413,907 and the patents U.S. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462, 2,261,002, 2,271,378, 3,874,870, 4,001,432, 3,929,990, 3,966,904, 4,005,193, and the like. 025 617, 4,025,627, 4,025,653, 4,026,945 and 4,027,020. Polymers which consist of recurring units corresponding to formula (XVI) can be used more particularly: R18 120 -N + (CH2) r N + ( In which: R18, R19, R20 and R21, which may be identical or different, denote an alkyl or hydroxyalkyl group having from 1 to 4 carbon atoms, r and s are integers varying from 2 to at about 20 and X- is an anion derived from a mineral or organic acid. A particularly preferred compound of formula (XVI) is that for which R18, R19, R20 and R21, represent a methyl group and r = 3, s = 6 and X = Cl, called Hexadimethrine chloride according to the INCI nomenclature (CTFA). (8) quaternary polyammonium polymers consisting of units of formula (XVII): ## STR5 ## ## STR2 ## (XVII) in which: R22, R23, R24 and R25, which may be identical or different, represent a hydrogen atom or a methyl, ethyl, propyl, R-hydroxyethyl, R-hydroxypropyl or -CH2CH2 (OCH2CH2) pOH group, where p is 0 or an integer between 1 and 6, provided that R22, R23, R24 and R25 do not simultaneously represent a hydrogen atom, t and u, which are identical or different, are integers inclusive between 1 and 6, v is 0 or an integer from 1 to 34, X is an anion such as a halide, A is a group of a dihalide or is preferably -CH2-CH2-O CH2-CH2.

Such compounds are described in particular in patent application EP-A-122,324. For example, the products "Mirapol® A 15", "Mirapol® AD1", "Mirapol® AZ1" and " Mirapol® 175 "sold by the company Miranol. (9) quaternary vinylpyrrolidone and vinylimidazole polymers such as, for example, the products sold under the names Luviquat® FC 905, FC 550 and FC 370 by the company B.A.S.F. (10) cationic polysaccharides, especially cationic celluloses and cationic cellulose derivatives and cationic galactomannan gums. Among the cationic polysaccharides, mention may be made more particularly of cellulose ether derivatives containing quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums. The cellulose ether derivatives containing quaternary ammonium groups described in French Patent 1,492,597. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose reacted with a trimethylammonium-substituted epoxide.

Cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, are described in particular in US Pat. No. 4 131 576, such as hydroxyalkyl celluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropyl-grafted celluloses in particular. with a salt of methacryloylethyl trimethylammonium, methacrylamidopropyltrimethylammonium, dimethyldiallylammonium. The cationic galactomannan gums are described more particularly in US Pat. Nos. 3,589,578 and 4,031,307, in particular guar gums containing cationic trialkylammonium groups.

For example, guar gums modified with a salt (for example chloride) of 2,3-epoxypropyltrimethylammonium are used. Other cationic polymers which can be used in the context of the invention are cationic proteins or hydrolysates of cationic proteins, polyalkyleneimines, in particular polyethyleneimines, polymers containing vinylpyridine or vinylpyridinium units, condensates of polyamines and of epichlorohydrin, quaternary polyureylenes and chitin derivatives. The proteins or hydrolysates of cationic proteins are in particular chemically modified polypeptides carrying at the end of the chain, or grafted onto it, quaternary ammonium groups. Their molecular weight may vary for example from 1500 to 10000, and in particular from 2000 to 5000 approximately. Among these compounds, there may be mentioned in particular: collagen hydrolysates bearing triethylammonium groups, such as the products sold under the name Quat-Pro E by the company MAYBROOK and referred to in the CTFA dictionary as "Triethonium Hydrolyzed Collagen Ethosulfate"; collagen hydrolysates bearing trimethylammonium chloride and trimethylstearylammonium groups, sold under the name "Quat-Pro S" by the company MAYBROOOK and referred to in the CTFA dictionary "Steartrimonium Hydrolyzed Collagen"; animal protein hydrolysates bearing trimethylbenzylammonium groups, such as the products sold under the name Crotein BTA by the company CRODA and referred to in the CTFA dictionary as "Benzyltrimonium hydrolyzed animal protein"; protein hydrolysates carrying on the polypeptide chain quaternary ammonium groups comprising at least one alkyl group having from 1 to 18 carbon atoms. Among these protein hydrolysates, mention may be made, inter alia, of: - "Croquat L", the quaternary ammonium groups of which contain a 0-12 alkyl group; "Croquat M", the quaternary ammonium groups of which contain alkyl groups of Cao-Cl 3; "Croquat S" whose quaternary ammonium groups contain a C13 alkyl group; "Crotein Q" whose quaternary ammonium groups contain at least one alkyl group having from 1 to 18 carbon atoms. These different products are sold by Croda.

Other quaternized proteins or hydrolysates are, for example, those corresponding to formula (XVIII): ## STR2 ## in which X- is an anion of an organic or inorganic acid, denotes a residue of protein derived from collagen protein hydrolysates, R29 denotes a lipophilic group having up to 30 carbon atoms, R30 represents an alkylene group having 1 to 6 carbon atoms. Mention may be made, for example, of the products sold by the company Inolex under the name "Lexein QX 3000", referred to in the CTFA dictionary as "Cocotrimonium Collagen Hydrolysate".

Mention may also be made of quaternized vegetable proteins such as wheat, corn or soya proteins: as quaternized wheat proteins, mention may be made of those marketed by the company Croda under the names "Hydrotriticum WQ or QM", referred to in the dictionary CTFA "Cocodimonium Hydrolysed wheat protein", "Hydrotriticum QL" called in the CTFA dictionary "Laurdimonium hydrolysed wheat protein", or "Hydrotriticum QS", called in the CTFA dictionary "Steardimonium hydrolysed wheat protein". Among all the cationic polymers that may be used in the context of the present invention, it is preferred to use the cationic cyclopolymers as defined above, in particular homopolymers or copolymers of dimethyldiallylammonium chloride, sold under the names "Merquat". 100 "," MERQUAT 550 "and" MERQUAT S "by NALCO, quaternary vinylpyrrolidone and vinylimidazole polymers, cationic polysaccharides and mixtures thereof.

The conditioning agent (s) that may be used according to the invention may be chosen from cationic surfactants. The term "cationic surfactant" means a positively charged surfactant when it is contained in the composition according to the invention. This surfactant may carry one or more positive permanent charges or contain one or more cationizable functions within the composition according to the invention. The cationic surfactant or surfactants that can be used as conditioning agents according to the present invention are preferably chosen from primary, secondary or tertiary fatty amines, optionally polyoxyalkylenated, or their salts, quaternary ammonium salts, and mixtures thereof. Fatty amines generally comprise at least one C8-C30 hydrocarbon chain. Among the fatty amines that can be used according to the invention, mention may be made, for example, of stearylamidopropyl dimethylamine and distearylamine. As quaternary ammonium salts, there may be mentioned, for example: - those having the following general formula (XIX): - + R8 / R10 NX R9 R11 (XIX) in which the groups R8 to R11, which can be identical or different, represent a linear or branched aliphatic group containing from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to R11 denoting a group comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms. The aliphatic groups can comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens. The aliphatic groups are for example selected from C1-30 alkyl, C1-30 alkoxy, polyoxyalkylene (C2-C6), C1-30 alkylamide, (C1-C22) alkylamido (C2-C6) alkyl, alkyl ( C12-C22) acetate, and C1-30 hydroxyalkyl; X- is an anion selected from the group of halides, phosphates, acetates, lactates, (C1-C4) alkyl sulfates, (C1-C4) alkyl or (C1-C4) alkylsulphonates. Among the quaternary ammonium salts of formula (XIX), tetraalkylammonium salts, for example dialkyl dimethyl ammonium or alkyl trimethyl ammonium salts in which the alkyl group comprises from about 12 to 22 carbon atoms, are preferred. carbon, in particular the salts of behenyltrimethylammonium, distearyldimethylammonium, cetyltrimethylammonium, benzyldimethylstearylammonium or, on the other hand, the salt of palmitylamidopropyltrimethylammonium, stearamidopropyltrimethylammonium, the salt of staramidopropyldimethylcétéaryl ammonium, or the salt of staramidopropyldimethyl (myristyl acetate) ammonium. sold under the name CERAPHYL® 70 by VAN DYK. It is particularly preferred to use the chloride salts of its compounds. the quaternary ammonium salts of imidazoline, for example those of the following formula (XX): ## STR1 ## wherein R12 is alkenyl or alkyl having 8 to 30 carbon atoms, for example fatty acid derivatives of tallow, R13 represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group having 8 to 30 carbon atoms, R14 represents a C1-C4 alkyl group, R15 represents a hydrogen atom, a C1-C4 alkyl group, X- is an anion chosen from the group of halides, phosphates, acetates, lactates alkyl, sulphates, alkyl or alkylaryl sulphonates, the alkyl and aryl groups of which preferably comprise 1 to 20 carbon atoms and 6 to 30 carbon atoms, respectively. Preferably, R12 and R13 denote a mixture of alkenyl or alkyl groups containing from 12 to 21 carbon atoms, for example fatty acid derivatives of tallow, R14 denotes a methyl group, R15 denotes a hydrogen atom. Such a product is for example marketed under the name REWOQUAT® W 75 by the company REWO; the quaternary di or triammonium salts of formula (XXI): X

++ R17 R19 R1 N (CH2) 3 N-R21 R18 R20 (XXI) wherein R16 denotes an alkyl group having from about 16 to 30 carbon atoms optionally hydroxylated and / or interrupted by one or more oxygen atoms, R17 is selected from hydrogen or an alkyl group having from 1 to 4 carbon atoms or the following group: 17 1 N (CH 2) 3 -R 18 Y R '16, R 17, R 18, R 18, R 19, R20 and R21, which are identical or different, are chosen from hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and X- and Y- are anions chosen especially from the group of halides, acetates, phosphates, nitrates and alkyl (C1-C6) sulfates, in particular methylsulfate and ethylsulfate. Such compounds are for example the Finquat CT-P proposed by FINETEX (Quaternium-89), the Finquat CT proposed by FINETEX (Quaternium 75), the Condicate CT proposed by INNOSPEC ACTIVE CHEMICALS (Quaternium-75) ; quaternary ammonium salts containing at least one ester function, such as those of the following formula (XXII): ## STR2 ## in which: R22 is selected from C 1 -C 6 alkyl groups and C 1 -C 6 hydroxyalkyl or dihydroxyalkyl groups; R 23 is chosen from: II - the group R 26 C - the groups R 27 which are linear or branched, saturated or unsaturated C 1 -C 22 hydrocarbon-based groups, - the hydrogen atom, R 25 is chosen from: 2 X R 24 X (XXII) - the group R28 - the groups R29 which are linear or branched, saturated or unsaturated C1-C6 hydrocarbon groups, - the hydrogen atom, R24, R26 and R28, which are identical or different, are chosen from C7-C21 hydrocarbon groups, linear or branched, saturated or unsaturated; r, s and t, identical or different, are integers ranging from 2 to 6; y is an integer from 1 to 10; x and z, which are identical or different, are integers ranging from 0 to 10; X- is a simple or complex anion, organic or inorganic; with the proviso that the sum x + y + z is from 1 to 15, that when x is 0 then R23 is R27 and that when z is 0 then R25 is R29. The alkyl groups R22 may be linear or branched and more particularly linear.

Preferably, R 22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group. Advantageously, the sum x + y + z is from 1 to 10. When R 23 is a hydrocarbon R 27 group, it may be long and have 12 to 22 carbon atoms, or short and have from 1 to 3 carbon atoms.

When R 25 is a hydrocarbon R 29 group, it preferably has 1 to 3 carbon atoms. Advantageously, R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon groups, and more particularly from linear or branched, saturated or saturated C11-C21 alkyl and alkenyl groups. or unsaturated. Preferably, x and z, which are identical or different, are equal to 0 or 1. Advantageously, y is equal to 1. Preferably, r, s and t, identical or different, are equal to 2 or 3, and even more particularly are equal to 2 .

The anion X- is preferably a halide (chloride, bromide or iodide) or an alkyl sulphate more particularly methyl sulphate. However, it is possible to use methanesulphonate, phosphate, nitrate, tosylate, an anion derived from an organic acid such as acetate or lactate or any other anion compatible with ammonium with an ester function.

The X- anion is even more particularly chloride or methylsulfate. In the composition according to the invention, the ammonium salts of formula (XXII) are used more particularly in which: R 22 denotes a methyl or ethyl group, x and y are equal to 1; z is 0 or 1; r, s and t are 2; R 23 is chosen from: O - the group R 26 C - methyl, ethyl or C 14 -C 22 hydrocarbon groups, - the hydrogen atom; R 25 is selected from: O - the group R 28 C - the hydrogen atom; R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C13-C17 hydrocarbon groups, and preferably from linear or branched, saturated or unsaturated C13-C17 alkyl and alkenyl groups; . Advantageously, the hydrocarbon groups are linear. Examples which may be mentioned include compounds of formula (XXII) such as the salts (especially chloride or methylsulfate) of diacyloxyethyl-dimethylammonium, diacyloxyethyl-hydroxyethyl-methylammonium, monoacyloxyethyl-dihydroxyethyl-methylammonium, triacyloxyethylmethylammonium, monoacyloxyethyl-hydroxyethyl dimethylammonium and mixtures thereof. The acyl groups preferably have from 14 to 18 carbon atoms and come more particularly from a vegetable oil such as palm oil or sunflower oil. When the compound contains more than one acyl group, the latter groups may be identical or different. These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldiisopropanolamine optionally oxyalkylenated on Cao-C3o fatty acids or on mixtures of Cao-C3o fatty acids. plant or animal origin, or by transesterification of their methyl esters. This esterification is followed by quaternization using an alkylating agent such as an alkyl halide (preferably methyl or ethyl), a dialkyl sulphate (preferably methyl or ethyl), methanesulfonate. methyl, para-toluenesulfonate methyl, chlorohydrin glycol or glycerol.

Such compounds are, for example, sold under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, NOXAMIUMO by the company CECA, REWOQUAT® WE 18 by the company REWO-WITCO.

The composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority by weight of diester salts. It is also possible to use the ammonium salts containing at least one ester function described in US-A-4,874,554 and US-A-4,137,180.

The particularly preferred cationic surfactant or surfactants that can be used according to the invention are chosen from compounds of formula (XIX) or of formula (XXII), methyl (C 9 -C 19) alkyl (C 10 -C 20) alkylamidoethylimidazolium salts, and staramidopropyl dimethylamine. Among all the cationic surfactants that may be present in the composition according to the invention, it is preferred to choose the salts of cetyl trimethyl ammonium, behenyl trimethyl ammonium, di (palmitoyl-oxyethyl) hydroxyethyl methyl ammonium, di (stearoyl-oxyethyl) hydroxyethyl methyl ammonium, methyl (C9-C19) alkyl (C10-C20) alkylamidoethylimidazolium, stearamidopropyltrimethylammonium salt, stearamidopropyl dimethylamine, stearamidopropyldimethylcearylammonium salt, and mixtures thereof. The cationic surfactant (s) may be present in a content ranging from 0.01% to 15% by weight, relative to the total weight of the composition of the invention, and preferably ranging from 0.1% to 10% by weight. and more preferably from 0.2 to 5% by weight.

When the composition in accordance with the invention comprises one or more cationic surfactants, the ratio by weight of starches modified with a cationic acid / surfactant derivative (s) generally ranges from 0.1 to 50, even more preferably from 1 to at 25, more preferably from 1 to 10. Among the silicones that can be used as conditioning agents in accordance with the present invention, mention may be made without limitation of: 1. Volatile silicones: These have a boiling point of between 60 ° C. C and 260 ° C. Among this type of silicone, mention may be made of: (a) cyclic silicones containing from 3 to 7 silicon atoms, and preferably from 4 to 5. It is, for example, octamethylcyclo-tetrasiloxane sold under the name of "VOLATILE SILICONE 7207®" by the company UNION CARBIDE or "SILBIONE 70045 V2®" by the company RHONE POULENC, decamethylcyclopentasiloxane sold under the name "VOLATILE SILICONE 7158®" by the company UNION CARBIDE, "SILBIONE 70045 V5®" by the company RHONE POULENC, as well as their mixtures. Mention may also be made of cyclopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the "VOLATILE SILICONE FZ 3109®" sold by UNION CARBIDE, which is a cyclocopolymer dimethylsiloxane / methyloctylsiloxane; (b) linear volatile silicones having 2 to 9 silicon atoms and having a viscosity of less than or equal to 5.10-6 m2 / s at 25 ° C. It is, for example, hexamethyldisiloxane sold under the name "SILBIONE 70041 V0,65®" by the company RHONE POULENC. This type of product is described in the article by TODD & BYERS "Volatile silicone fluids for cosmetics", Cosmetics and Toiletries, Vol. 91, Jan 76, pages 27 32. II. Non-volatile silicones: They consist mainly of polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes and organomodified polysiloxanes, as well as their mixtures. They can be in the form of oils, gums and resins. Among the polyalkylsiloxanes, mention may be made of linear polydimethylsiloxanes with a viscosity of greater than 5.10-6 m 2 / s, and preferably less than 2.6 m 2 / s, ie: with trimethylsilyl end groups, for example, and the "SILBIONE®" oils of the 70047 series marketed by the company RHONE POULENC, the Wacker Belsil DM 60000 WACKER oil or certain "VISCASIL®" from the company GENERAL ELECTRIC, 25-with trihydroxysilyl end groups, such as the Oils from the "48 V®" series from RHONE POULENC. In this class of polyalkylsiloxanes, mention may also be made of the polyalkylsiloxanes sold by GOLDSCHMIDT under the names "ABILWAX 9800®" and "ABILWAX 9801®", which are polyalkyl (C1-20) siloxanes. Among the polyalkylarylsiloxanes, mention may be made of linear and / or branched polydimethylphenylsiloxanes, linear and / or branched polydimethyldiphenylsiloxanes, with a viscosity of 10-5 to 5 × 10 -2 m 2 / s, such as, for example: the RHODORSIL® 763 oil from RHONE POULENC, - the "SILBIONE®" oils of the 70641 series from RHONE POULENC, such as the "SILBIONE 70641 V30®" and "SILBIONE 70641 V200®" oils, - the "DC 556®" Cosmetic Grad Fluid product from DOW CORNING, - the PK series silicones from BAYER, such as "PK200", - BAYER PN, PH series silicones, such as "PN 1000®" and "PH 1000®", - certain oils from the SF series of GENERAL ELECTRIC, such as the "SF 1250®", "SF 1265®", "SF 1154®", "SF 1023®".

The silicone gums, in accordance with the present invention, are polydiorganosiloxanes with a high average molecular mass ranging from 200,000 to 1,000,000, used alone or as a mixture in a solvent chosen from volatile silicones and polydimethylsiloxane (PDMS) oils. , polyphenylmethylsiloxane oils (PPMS), isoparaffins, methylene chloride, pentane, dodecane, tridecane, tetradecane or their mixtures. For example, compounds having the following structures are mentioned: poly [(dimethylsiloxane) / (methylvinylsiloxane)] gums, poly [(dimethylsiloxane) / (diphenylsiloxane)] gums, poly [(dihydrogéno dimethylsiloxane) gums / (divinylsiloxane) )], poly [(dimethylsiloxane) / (phenylmethylsiloxane)] gums, poly [(dimethylsiloxane) / (diphenylsiloxane) / (methylvinylsiloxane)] gums. We can mention the Mirasil DM300 000 gum from Rhodia.

Mention may also be made, for example, without limitation, of the following mixtures: 1) mixtures formed from an end-hydroxylated polydimethylsiloxane (DIMETHICONOL according to the CTFA nomenclature), and a cyclic polydimethylsiloxane (CYCLOMETHICONE according to the CTFA nomenclature), such as the "Q2 1401®" or DOW CORNING 1501 FLUID products sold by Dow Corning; 2) mixtures formed from a polydimethylsiloxane gum with a cyclic silicone, such as the product "SF 1214 SILICONE FLUID®" from GENERAL ELECTRIC, which is an "SE 30®" gum of MW 500,000 (-Mn) solubilized in "SF 1202 SILICONE FLUID®" (decamethylcyclopentasiloxane); 3) blends of two PDMSs of different viscosities, in particular a PDMS gum and a PDMS oil, such as the "SF 1236®" and "CF 1241®" products from the company GENERAL ELECTRIC. The product "SF 1236®" is the mixture of a "SE 30®" gum defined above with a viscosity of 20 m2 / s and a "SF 96®" oil with a viscosity of 5.106 m2 / s (15% "SE 30®" gum and 85% "SF 96®" oil).

The product "CF 1241®" is the mixture of a gum "SE 30®" (33%) and a PDMS (67%) of viscosity 10-3 m / s. The organopolysiloxane resins used in accordance with the invention are crosslinked siloxane systems containing the units: R 2 SiO 2 12, RSiO 3, 2 and SiO 4 12 in which R represents a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group. Among these products, those that are particularly preferred are those in which R denotes a lower (C1-C4) alkyl group or a phenyl group. Among these resins, mention may be made of the product sold under the name "Dow Corning 593®" or those sold under the names "SILICONE FLUID SS 4230" and "SILICONE FLUID SS 4267" by the company GENERAL ELECTRIC, which are dimethyl / trimethylpolysiloxanes . The organomodified silicones, in accordance with the present invention, are silicones as defined above, comprising in their general structure one or more organofunctional groups directly attached to the siloxane chain or attached via a hydrocarbon group. Mention may be made, for example, of silicones comprising: a) perfluorinated groups such as trifluoroalkyls, for example those sold by the company General Electric under the names "FF.150 Fluorosilicone Fluid" or by the company Shin Etsu under the names "FF.150 FLUOROSILICONE FLUID®"; the terms "X-22-819®", "X-22-82®", "X-22-821®" and "X-22-822®"; b) hydroxyacylamino groups such as, for example, those described in the patent application EP 0 342 834 and in particular the silicone sold by Dow Corning under the name "Q2-8413®"; c) thiol groups as in the silicones "X 2-8360®" of the Dow Corning Company or the "GP 72A®" and "GP 71®" of GENESEE; d) non-quaternized amino groups, such as in GENESEE's "GP 4 SILICONE FLUID®", GENESEE "GP 7100®", DOW CORNING "Q2 8220®", UNION AFL 40® " CARBIDE or the silicone called "Amodimethicone" in the CTFA dictionary; e) carboxylate groups, such as the products described in patent EP 186 507 of CHISSO CORPORATION; f) hydroxyl groups, such as, for example, the hydroxyalkyl-functional polyorganosiloxanes described in the patent application FR 8 516 334. The product marketed by Dow Corning under the name DC 190 may be particularly cited; g) alkoxylated groups such as in the silicone copolymer "F 755®" from SWS SILICONES and the products "ABILWAX 2428®", "ABILWAX 2434®", "ABILWAX 2440®" from the company GOLDSCHMIDT; h) acyloxyalkyl groups, such as, for example, the polyorganopolysiloxanes described in the patent application FR 8 817 433, corresponding to the following formula (XXIV): O-Si (R 2) 3 (R 2) 3 -Si r (XXIV) in which: R2 is methyl, phenyl, OCOR ", hydroxyl, only one of R2 per silicon atom may be OH; R'2 is methyl, phenyl, 60 mol% at least of all R2 and R groups; 2 is methyl; R "is C 8 -C 20 alkyl or alkenyl; R represents a divalent, linear or branched C2-C18 hydrocarbon alkylene; r is between 1 and 120 inclusive; - p, q is 0 or is less than 0.5 p, p + q being between 1 and 30 inclusive: the polyorganosiloxanes of formula (XXIV) may contain groups: cl-17 i-OH o 2/2 in proportions not exceeding 15% of the sum p + q + r; i) quaternary ammonium groups, as in the products "X2 81 08®" and "X2 81 09®", the product "ABIL K 3270®" from the company GOLDSCHMIDT; j) amphoteric or betaine groups, such as in the product sold by GOLDSCHMIDT under the name "ABIL B 9950®"; k) bisulfite groups, such as, for example, in the products sold by GOLDSCHMIDT under the names "ABIL S 201®" and "ABIL S 255®".

I) polyethyleneoxy and / or polypropyleneoxy groups optionally containing C6-C24 alkyl groups such as the products known as dimethicone copolyol marketed by the company Dow Corning under the name DC 1248 or the oils SILWET L 722, L 7500, L 77, L 711 of the company UNION CARBIDE and the alkyl (C12) methicone copolyol marketed by the company Dow Corning under the name Q2 5200. According to the invention, it is also possible to use silicones comprising a polysiloxane portion and a portion consisting of a chain organic nonsilicone, one of the two portions constituting the main chain of the polymer the other being grafted on said main chain. These polymers are for example described in patent applications EP-A-412 704, EP-A-412 707, EP-A-640 105 and WO 95/00578, EP-A-582 152 and WO 93/23009 and the US Pat. Nos. 4,693,935, 4,728,571 and 4,972,037. These polymers are preferably anionic or nonionic.

Such polymers are, for example, the copolymers that can be obtained by radical polymerization from the monomer mixture consisting of: a) 50 to 90% by weight of tert-butyl acrylate; b) 0 to 40% by weight of acrylic acid; c) 5 to 40% by weight of silicone macromer of formula (XXV): ## STR2 ## wherein CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH3 (XXV) with v being a number from 5 to 700; the percentages by weight being calculated with respect to the total weight of the monomers. Other examples of grafted silicone polymers are in particular polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connection link, mixed polymeric units of the poly (meth) acrylic acid and poly type. alkyl (meth) acrylate; and polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connecting member, polymeric units of the poly (meth) acrylate isobutyl type. According to the invention, all the silicones can also be used in the form of emulsions, nanoemulsions or microemulsions. The polyorganosiloxanes that are particularly preferred according to the invention are: non-volatile silicones chosen from the family of polyalkylsiloxanes containing trimethylsilyl end groups, such as oils having a viscosity of between 0.2 and 2.5 m 2 / s at 25 ° C. that the oils of the DC200 series of DOW CORNING in particular that of viscosity 60 000 cSt, SILBIONE series 70047 and 47 and more particularly the oil 70 047 V 500 000 marketed by Rhodia Chimie, the polyalkylsiloxanes end groups dimethylsilanol such dimethiconols or polyalkylarylsiloxanes such as SILBIONE 70641 V 200 oil marketed by Rhodia Chimie; polysiloxanes with amino groups such as amodimethicones or trimethylsilylamodimethicone. The viscosities of the silicones can in particular be determined by ASTM D445-97 (viscometry). When the conditioning agent of the composition according to the invention is a hydrocarbon, it is preferably a hydrocarbon, linear or branched C8-C30. Among the liquid hydrocarbons at ambient temperature which correspond to this definition, mention may especially be made of isododecane, isohexadecane and its isomers (such as 2,2,4,4,6,6-heptamethylnonane), isoeicosane and the like. isotetracosane, the isomers of said compounds, n-nonadecane, ndodecane, n-undecane, n-tridecane, n-pentadecane, petrolatum oil and mixtures of these hydrocarbons. Isododecane or one of its isomers or vaseline oil is preferably used according to the invention. When the conditioning agent is a fatty alcohol, it is of the linear or branched, saturated or unsaturated, C 8 -C 30 type. Among these, there may be mentioned, for example, 2-butyl octanol, lauric alcohol, 2-octyl dodecanol, oleic alcohol, isocetyl alcohol, isostearyl alcohol, stearyl alcohol and cetyl alcohol. , behenyl alcohol and mixtures thereof. When the conditioning agent is a fatty ester, it may be either an ester of a C 8 -C 30 fatty acid and a C 1 -C 30 monohydric alcohol, and especially a C 8 -C 18 fatty acid ester. C30 and C8-C30 fatty alcohol, an ester of a C1-C7 acid or diacid and a C8-C30 fatty alcohol. Among these esters, mention may be made, for example, of ethyl, isopropyl, ethyl-2-hexyl and 2-octyldecyl palmitate, of isopropyl, butyl, cetyl and 2-octyldecyl myristate. butyl and hexyl stearate, hexyl-2-hexyldecyl laurate, isononyl isononanoate, dioctyl malate, myristyl myristate, cetyl palmitate, and mixtures thereof.

This may also be a polyol ester and especially glycerine such as a natural triglyceride or synthetic. As natural triglycerides include vegetable oils such as avocado oil, olive oil, wheat germ oil, sunflower oil, argan oil, corn , soya, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, castor, avocado, olive, rapeseed, copra, sweet almond , safflower, bancoulier nut, camellina, tamanu, babassu, pracaxi and their mixtures. Ceramides or ceramide analogues, such as glycoceramides which can be used as conditioning agents in the compositions according to the invention, are known per se and are natural or synthetic molecules which can satisfy the following general formula (XXVI): R 3 CHOH In which: R1 denotes a linear or branched, saturated or unsaturated alkyl group derived from C14-C30 fatty acids, this group possibly being substituted with a hydroxyl group in the form of a hydroxyl group; alpha position, or an omega-hydroxyl group esterified with a saturated or unsaturated C16-C30 fatty acid; R2 denotes a hydrogen atom or a (glycosyl) n, (galactosyl), or sulphogalactosyl group, in which n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8; - R3 denotes a C15-C26 hydrocarbon group, saturated or unsaturated in the alpha position, this group may be substituted with one or more C1-C14 alkyl groups; it being understood that in the case of natural ceramides or glycoceramides, R3 may also designate a C15-C26 alpha-hydroxyalkyl group, the hydroxyl group optionally being esterified with a C16-C30 alphahydroxy acid. The ceramides preferred in the context of the present invention are those described by DOWNING in Arch. Dermatol, Vol. 123, 1381-1384, 1987, or those described in French patent FR 2,673,179. The most preferred ceramides or ceramides according to the invention are the compounds for which R 1 denotes a saturated or unsaturated alkyl derived from C 16 fatty acids. -C22; R2 denotes a hydrogen atom; and R3 denotes a C15 saturated linear group. Such compounds are, for example: N-linoleoyldihydrosphingosine, N-oleoyldihydrosphingosine, N-palmitoyldihydrosphingosine, N-stearoyldihydrosphingosine, N-behenoyldihydrosphingosine, or mixtures of these compounds.

Still more preferably, ceramides are used for which R1 denotes a saturated or unsaturated alkyl group derived from fatty acids; R2 is a galactosyl or sulfogalactosyl group; and R3 denotes a group --CH = CH- (CH2) 12 -CH3. Among all these conditioning agents, one or more conditioning agents chosen from silicones such as organosiloxanes and cationic polymers are preferably used. The composition according to the invention preferably contains from 0.01 to 20% by weight and more preferably from 0.05 to 10% by weight of conditioning agent (s), relative to the total weight of the composition.

The composition according to the invention may further comprise one or more conventional additives well known in the art, different from the compounds defined above. As examples of additives that may be used according to the invention, mention may be made of anionic surfactants, amphoteric or zwitterionic surfactants, nonionic surfactants, proteins, protein hydrolysates, vitamins, reducing agents, plasticizers, softeners, anti-foam agents, moisturizing agents, pigments, clays, mineral fillers, UV filters, abrasive agents (pumice, apricot kernel powder), mineral colloids, peptizers, solubilizers perfumes, preservatives, pearlescent agents, propellants, anti-dandruff agents (for example zinc pyrithione, octopirox, selenium sulphide, ellagic acid and derivatives), anti-hair loss agents, hair regrowth agents; these additives being different from the compounds defined above. Those skilled in the art will take care to choose the optional additive (s) and their quantity so that they do not adversely affect the properties of the compositions of the present invention.

The additive or additives are generally present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition. The compositions according to the invention may be in any of the galenical forms conventionally used for topical application and especially in the form of aqueous, hydroalcoholic, oil-in-water (O / W) or water-in-oil ( E / H) or multiple (triple: W / H / E or H / E / H), aqueous gels, or dispersions of a fatty phase in an aqueous phase using spherules, these spherules being polymeric nanoparticles such as nanospheres and nanocapsules or lipid vesicles of ionic and / or nonionic type (liposomes, niosomes, oleosomes). These compositions are prepared according to the usual methods. In addition, the compositions used according to the invention may be more or less fluid and have the appearance of a white or colored cream, an ointment, a milk, a lotion, a serum, a paste or foam. They may optionally be applied to keratin materials in the form of an aerosol. They may also be in solid form, for example in the form of a stick. Of course, one skilled in the art will take care to choose the optional compounds to add to the composition according to the invention, such that the advantageous properties intrinsically attached to the composition according to the invention are not, or not substantially impaired by the addition or additions envisaged. As indicated above, the subject of the invention is also a non-therapeutic cosmetic treatment method for treating keratin materials, in particular the hair, comprising the application to said materials of a composition as described above. This application may or may not be followed by rinsing. When the application of the composition is followed by rinsing the exposure time of the composition on the keratin materials ranges from a few seconds to 60 minutes, better from 5 seconds to 30 minutes, even better from 10 seconds to 10 minutes. Whether in rinsed mode or in rinsed mode, the application of the composition can be done in the presence of heat. The heater may be a hair dryer, a helmet, a round or flat iron. The heating temperature can be between 40 and 220 ° C.

The application of the composition according to the invention to hair can be done on dry hair or wet hair. It can in particular be carried out after shampooing or after pretreatment at acidic or basic pH. The subject of the invention is also the use of a composition according to the invention for caring for and / or shaping keratinous substances, in particular keratinous fibers, and in particular human keratinous fibers such as the hair. The following examples are intended to illustrate the invention without being limiting in nature.

EXAMPLE 1 The care composition (A) rinsed is prepared from the ingredients indicated in the table below, the amounts of which are expressed in percent by weight of active ingredients, relative to the total weight of the composition. Compositions A (Invention) 3-Aminopropyltriethoxysilane 1 Potato Starch Acetate 1 (PERFECTAMYL AC from AVEBE) HYDROXYETHYLCELLULOSE (NATROSOL 0 2 250 HHR from ASHLAND) Cetyl Stearyl Alcohol (C16 / C18 50/50) 3.5 Myristate Blend myristyl, cetyl palmitate 0.7 and stearyl stearate (MIRACETI LASERSON) Behenyltrimethyl ammonium chloride 1.58 79% solution in isopropanol (GENAMIN KDMP CLARIANT) Lactic acid qs pH 9 Perfume qs Digluconate 0.2% water, 100% water. Applied as after rinsed shampoo, the composition (A) gives the hair mass, volume and a homogeneous touch from the root to the tip.

Moreover, this composition makes it possible to facilitate the shaping of fine hair and to provide a better definition of loop to curly hair.

EXAMPLE 2 Composition (B) is prepared from the ingredients indicated in the table below, the amounts of which are expressed as a percentage by weight of active ingredients, relative to the total weight of the composition. Compositions B (inventio n) 3-aminopropyltriethoxysilane 4.4 hydroxypropyl maize starch phosphate (AKZO NOBEL STRUCTURE ZEA) Hydroxyethylcellulose (NATROSOL 0 725 HHR from ASHLAND) Lactic acid 1.75 pH agent qs pH 9 Deionized water qs 100% Composition C is prepared from the ingredients indicated in the table below, the amounts of which are expressed as a percentage by weight of active ingredients, relative to the total weight of the composition. Compositions C Bis-Diglyceryl polyacyladipate-2 (SOFTISAN 0,15,649 of SASOL) Amino silicone in aqueous emulsion at 60% 0,96 MA (DOW CORNING 2-8299 Cationic Emulsion of Dow Corning) Hydroxyethylcellulose ((NATROSOL 250 HHR 0 , 2 of ASHLAND) Cetylstearyl alcohol (C16 / C18 50/50) 3 Blend of myristyl myristate, cetyl palmitate 0.25 and stearyl stearate (MIRACETI deLASERSON) LAURYL PEG / PPG-18/18 METHICONE 72% 0.18 active ingredient (DOW CORNING 5200 DOW CORNING FORMULATION AID) Behenyltrimethyl ammonium chloride 1.58 79% solution in isopropanol (GENAMIN KDMP from CLARIANT) pH qs pH 3.5 PEG-180 ( Polyethylene Glycol) 2 L-Glycine 0.01 D-Panthenol 0.1 Vitamin E Acetate 0.1 2-Oleamido-1,3-octadecanediol 0.01 Perfume qs Preservatives, colorants qs Water gsp100% Compositions B and C are packaged in a double-body device consisting of two compartments and a dispensing head for delivering a m mixture consisting of equal amounts of compositions B and C.

Applied as after rinsed shampoo, the mixture of compositions (B) and (C) (50/50 by weight) gives the hair mass, volume and a uniform feel from the root to the tip.

In addition, this composition makes it possible to facilitate the shaping of fine hair and to provide a better definition of curly hair loop. Composition comprising an alkoxysilane and a modified starch and its use in cosmetics

The present invention relates to a particularly cosmetic composition containing at least one alkoxysilane and at least one starch modified with an acid or an acid derivative. Keratin fibers can undergo aggression of various origins such as mechanical aggression (disentangling, blow drying) or chemical (coloring, permanent). These aggressions have repercussions on the qualities of the fiber and will induce a difficult disentangling during the washing of the hair and a non-smooth, dry and uneven surface when the hair is dry. Hair is difficult to comb and lacks softness. The presently proposed conditioning compositions comprise essentially cationic surfactants, fats, silicones and cationic polymers. They facilitate the disentangling by a softening of the keratin fiber and bring shine, softness and regularity to the dried hair. However, these effects are not sustainable for shampoos and the application of these compositions is essential for each washing act to treat and facilitate the disentangling of the hair. Furthermore, it has been found that consumers are increasingly in search of care compositions which not only make it possible to condition the hair in a suitable manner but also to provide satisfactory styling effects. In particular, individuals with fine or curly hair are generally in search of care products that provide styling effects bringing mass, body and volume to fine hair and curly hair curl design. In FR2783164, it has already been proposed to use alkoxysilanes to provide hair styling properties. However, the aminosilane compositions have storage stability problems as well as incompatibilities with components widely used in cosmetics such as certain classes of surfactants and thickeners. As a result, thickening of this type of compositions is difficult. In addition, the results obtained are not completely satisfactory both in terms of the cosmetic properties themselves and their durability.

There is therefore a need for more powerful conditioning and styling compositions. The Applicant has surprisingly discovered that compositions comprising at least one ionic starch and at least one alkoxysilane make it possible to solve the problems mentioned above. More specifically, the subject of the invention is a composition, in particular a cosmetic composition comprising: (i) one or more alkoxysilanes, and (ii) one or more starches modified with an acid or an acid derivative. Such a composition has a satisfactory thickness and is more stable over time. It spreads easily on the hair, is easily removed with water leading to hair, shiny, smooth and soft, disentangling easily. The composition provides densification of the hair (more hair prints), body, volume, ease of shaping especially fine hair. Finally, the compositions according to the invention also make it possible to impart styling effects to curly hair, in particular in terms of drawing and control of loops. The good styling and cosmetic properties persist over time even after several shampoos.

The invention also relates to a non-therapeutic cosmetic treatment method for treating keratin materials, especially the hair, comprising the application to said materials of a composition as described above. The subject of the invention is also the use of a composition according to the invention for the care and shaping of keratin materials, in particular keratinous fibers, and in particular human keratinous fibers such as the hair. The composition according to the invention comprises one or more alkoxysilanes. The alkoxysilanes present in the composition according to the invention are preferably chosen from organosilanes comprising one, two or three silicon atoms, preferably one or two silicon atoms. The alkoxysilanes present in the composition according to the invention may comprise two or more hydrolyzable or hydroxyl groups per molecule. The hydrolyzable groups are preferably alkoxy, aryloxy or halogen groups. They may optionally comprise other chemical functions such as saline or non-salified functions, salified or unsalified carboxylic acid, salified or unsalified sulphonic acid, salified or unsalified phosphoric acid, salified or non-salified sulfuric acid, aldehyde, polyalcohols or polyethers. Preferably, the alkoxysilanes of the invention comprise one or more amine or aldehyde functions.

Even more preferentially, the alkoxysilanes of the invention comprise one or more amine functional groups. When the alkoxysilane present in the composition according to the invention comprises one or more amine functional groups, these are preferably primary amines (-NH 2) and / or secondary amines (-NHR).

According to a particular embodiment, the alkoxysilane (s) present in the composition according to the invention are chosen from the compounds of formula (I): R 1 / R 4 R (Si-R 5 (1) R 2 R 6 wherein: R4 is halogen, ORa or Ria, R5 is halogen, ORb or R2a, R6 is halogen, ORc or R1a, R1 and R2 are independently of each other; , a hydrogen atom, a saturated or unsaturated hydrocarbon group, linear or branched, optionally substituted by an amine function, which itself may carry a substitution with a saturated or unsaturated hydrocarbon group, linear or branched, which may optionally carry an amine function; preferably, R 1 or R 2 necessarily denoting a hydrogen atom, R 3, R a, R b, R c, R 1a, R 2a and R 1 represent, independently of one another, a linear or branched, saturated or unsaturated hydrocarbon-based group optionally bearing groups ch Additional imics such as acidic or amine groups, Ra, Rb and Rc may further denote hydrogen, and at least two of R4, R5 and R6 groups being different from Ria, R2a and R3a groups. Preferably, at least two of the groups Ra, Rb and Rc are different from hydrogen. Preferably, the groups R1, R2, Ra, R1a, R2a, R3a, Rb and Rc are chosen from C1-C12 alkyl, C5-C14 aryl and C5-C14 alkyl (C1-C8) aryl radicals. and C -C aryl (C 5 -C 14) alkyl.

Preferably, the group R3 is chosen from C1-C12 alkylene radicals, optionally substituted by an amino group, C5-C14 arylene, C5-C14 alkylene (C1-C8) arylene, and (C5-C14) arylene alkylene groups. in C1-C8. According to one particular embodiment, the alkoxysilane (s) corresponding to formulas (I) are preferably 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane, and 3- (2-aminoethylamino) propylmethyldiethoxysilane. According to another embodiment, the alkoxysilane (s) used according to the invention are chosen from the compounds of formula (II):

(R21O) x (R22) ySi- (B) p- [NR23- (Ba) pa] g- [NR23, - (Bb) pb] ga-Si (R22a) an (OR21a) xa (II) wherein: R21, R22, R21a and R22a each represent, independently of one another, a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups selected from groups ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl, x is an integer ranging from 1 to 3, y = 3-x, xa is an integer ranging from 1 to 3, y = 3-xa, p = 0 or 1, pa = 0 or 1, pb = 0 or 1, q = 0 or 1, ga = 0 or 1, it being understood that at least q or qa is different from zero, B, Ba and Bb each independently represent a divalent linear or branched C 1 -C 20 alkylene radical. R23 and R23a each independently represent a hydrogen atom or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether groups, C1-C20 alcohol ester, amine, carboxyl, C 6 -C 30 aryl, hydroxyl or carbonyl, or an aromatic ring, heterocyclic or not, optionally substituted by one or more C 1 -C 20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups.

Preferably, R23 and R23a represent a hydrogen atom. As previously explained, R21, R22, R21a and R22a each independently represent a hydrocarbon chain. By hydrocarbon chain is preferably meant a chain having 1 to 30 and preferably 1 to 10 carbon atoms. Preferably, R21 = R21a; R22 = R22a; x = xa; y = ya; p = pa; B = Ba; q = 1 etga = 0.

The alkoxysilane (s) of formula (II) may also have the following characteristics, taken alone or in combination: R21, R22, R21a and R22a, which may be identical or different, represent a C1-C4 alkyl; = 1; B and Ba, which are identical or different, represent linear C 1 -C 4 alkylene. For example, the alkoxysilane (s) are chosen from bis [3- (triethoxysilyl) propyl] amine of formula (CH 3 CH 2 O) 3 -Si (CH 2) 3 NH (CH 2) 3 Si (OCH 2 CH 3) 3 proposed by Fluorochem, bis [trimethoxysilylpropyl] amine of formula (CH 3 O) 3 -Si (CH 2) 3 NH (CH 2) 3 Si (OCH 3) 3 provided by Gelest, bis [methyldiethoxysilylpropyl] amine of formula (CH 3 CH 2 O) 2 CH 3 Si (CH 2) 3 NH (CH 2 ) 3SiCH3 (OCH2CH3) 2 provided by Gelest and bis [3-trimethoxysilylpropyl] ethylenediamine of formula (CH3O) 3Si (CH2) 3NH (CH) 2NH (CH2) 3Si (OCH3) 3 provided by Gelest.

Among these compounds, bis [3- (triethoxysilyl) propyl] amine and bis [methyldiethoxysilylpropyl] amine are preferred. According to another embodiment of the invention, the alkoxysilane (s) are chosen from compounds of formula (III): (R28) i (R240) e (R25) f -Si - (E) g (Ea) in which: R24 and R25 each independently represent, from each other, a linear or branched, saturated or unsaturated hydrocarbon chain, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups; selected from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups, e = 2 or 3; f = 3-e; g = 0or1; d = 0or1; E and Ea each independently represent a divalent linear or branched C1 to C20 alkylene radical, R26 and R27 each independently represent hydrogen or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted; by one or more ether, C1-C20 alcohol ester, amine, carboxyl, alkoxysilane, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic heterocyclic or non-heterocyclic ring optionally substituted with one or more ester groups; C1-C20 alcohol, amine, amide, carboxyl, alkoxysilane, hydroxyl, carbonyl or acyl, i is an integer ranging from 0 to 4, h is 0 or 1, the R28 group (s) independently represent hydrogen or saturated or unsaturated hydrocarbon chain, linear or branched, preferably C1-C10, optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether, C1-C20 alcohol, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic ring, heterocyclic or non-heterocyclic, optionally substituted with one or more ester groups; C1-C20 alcohol, amine, amide, carboxyl, hydroxyl, carbonyl or acyl. As previously explained, R24 and R25 each independently represent a hydrocarbon chain. By hydrocarbon chain is preferably meant a chain having 1 to 30 and preferably 1 to 10 carbon atoms.

Similarly, R26 or R27 may represent a hydrocarbon chain. In this case, it is preferable to mean a chain comprising 1 to 30 and preferably 1 to 10 carbon atoms. Preferably, the aromatic ring has from 6 to 30 carbon atoms. Even more preferentially, it denotes an optionally substituted phenyl radical. The alkoxysilane (s) of formula (III) may have the following characteristics, taken alone or in combination: - R24 is a C1-C4 alkyl, - e = 3, g = j = 1; i = h = 0, R26 and R27 independently represent hydrogen or a group selected from C1-C4 alkyl, C1-C4 hydroxyalkyl and C1-C4 aminoalkyl. Preferably, R 26 or R 27 denote a hydrogen atom. In particular, the alkoxysilane (s) of formula (III) may be chosen from 3- (m-aminophenoxy) propyltrimethoxysilane, of formula: ## STR2 ##

p-aminophenyltrimethoxysilane, of formula: H 2 N Si (OCH 3) 3 - N- (2-aminoethylaminomethyl) phenethyltrimethoxysilane, of formula: ## STR2 ## the alkoxysilane (s) which can be used in the compositions according to the present invention correspond to the formula (IV): ## STR2 ## in which: R 1 and R 2, independently of one of the other are selected from hydrogen and ethyl, propyl and aminoethyl, R3 is selected from ethyl, propyl and methylphenethyl, R4, R5 and R6 independently of one another are selected from methyl groups, In one embodiment of the invention, the alkoxysilanes of the invention comprise one or more primary or secondary amine functions, Preferably, the alkoxysilanes of the invention are chosen from the compounds of formula (I), ( III) and (IV) and more particularly the following compounds: 3-aminopro pyltriethoxysilane (APTES), 3-aminoethyltriethoxysilane (AETES), 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and N- (2-aminoethylaminomethyl) phenethyltrimethoxysilane of the formula: (CH 3 O) 3 Si- ( More particularly the alkoxysilanes of the invention are chosen from the compounds of formula (I), in particular 3-aminopropyltriethoxysilane (APTES), 3-aminoethyltriethoxysilane (AETES), 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and preferably the alkoxysilane is 3-aminopropyl triethoxysilane (APTES)

The alkoxysilane (s) may be present in the composition according to the invention in a content ranging from 0.05% to 20%, in particular from 0.1% to 10%, preferably from 0.2% to 5%, relative to total weight of the composition.

The composition according to the invention comprises one or more starches modified with an acid or an acid derivative.

The starch (s) usable in the present invention are more particularly macromolecules in the form of polymers consisting of elementary units which are anhydroglucose units. The number of these motifs and their assembly make it possible to distinguish between amylose (linear polymer) and amylopectin (branched polymer). The relative proportions of amylose and amylopectin, as well as their degree of polymerization, vary according to the plant origin of the starches. The starch molecules used in the present invention may be from a plant source such as cereals, tubers, roots, vegetables and fruits. Thus, the starch (s) may come from a vegetable source selected from corn, peas, potato, sweet potato, banana, barley, wheat, rice, oats, sago, tapioca and sorghum. The starch is preferably from the potato. It is also possible to use the hydrolysates of the starches mentioned above. The starches are generally in the form of a white powder, insoluble in cold water, the size of the elementary particles ranges from 3 to 100 microns. The starches used in the composition of the invention may be chemically modified by one or more of the following reactions: pregelatinization, oxidation, crosslinking, esterification, heat treatments. In particular, these reactions can be carried out as follows: - pregelatinization by bursting the starch granules (for example drying and cooking in a drying drum); oxidation by strong oxidants leading to the introduction of carboxyl groups into the starch molecule and to the depolymerization of the starch molecule (for example by treating an aqueous starch solution with sodium hypochlorite); crosslinking with functional agents capable of reacting with the hydroxyl groups of the starch molecules which will thus be bonded together (for example with glyceryl and / or phosphate groups); alkaline esterification for the grafting of functional groups, in particular C1-C6 acyl (acetyl), hydroxyalkyl C1-C6 (hydroxyethyl, hydroxypropyl), carboxyalkyl.

The acids or acid derivatives may be acids or derivatives of mineral or organic acids. The term "derivatives" means salts of inorganic or organic acids, chlorides of organic acids, anhydrides of organic acids, esters of organic acids and inorganic oxychlorides.

In particular, it is possible to obtain, by means of crosslinking with phosphorus compounds, mono-starch phosphates (of the Am-O-PO- (OX) 2 type), diamidon phosphates (of the Am-O-PO- (OX) -O-Am type). or even triamidon (of the type Am-O-PO- (O-Am) 2) or mixtures thereof.

X denotes in particular alkali metals (for example sodium or potassium), alkaline earth metals (for example calcium, magnesium), ammonium salts, amine salts such as those of monoethanolamine, diethanolamine, triethanolamine, 3-aminopropanediol-1,2, ammonium salts derived from basic amino acids such as lysine, arginine, sarcosine, ornithine, citrulline. The phosphorus compounds may be, for example, sodium tripolyphosphate, sodium orthophosphate, phosphorus oxychloride or sodium trimetaphosphate. It is thus possible to use starch phosphates, in particular hydroxypropylated phosphates, or compounds rich in starch phosphate, in particular hydroxypropylated, such as the products proposed under the references PREJEL VA-70-T AGGL (hydroxypropylated manganese diamidon phosphate gelatinized or PREJEL TK1 (gelatinized cassioform diamidon phosphate) or PREJEL 200 (gelatinized acetylated manioc diamidon phosphate) by the company AVEBE or STRUCTURE ZEA by NATIONAL STARCH (hydroxypropylated cornstarch phosphate gelatinized). When the starches are chemically modified by an esterification reaction, carboxyalkyl starches may be obtained, as indicated above. The carboxyalkyl starches are preferably carboxyalkyl (CIC4) starches and their salts and more particularly carboxymethyl starches and their salts.

The salts are especially alkali metal or alkaline earth metal salts such as Na, K 1/2, Li, NH 4, a quaternary ammonium or an organic amine such as mono, di or triethanolamine. The carboxyalkyl starches are obtained by grafting carboxyalkyl groups on one or more alcohol functions of the starch, in particular by reaction of starch and sodium monochloroacetate in an alkaline medium. The carboxyalkyl groups are generally attached via an ether function, more particularly to carbon 1. The degree of substitution is preferably from 0.1 to 1 and more particularly from 0.15 to 0.5. The degree of substitution is defined according to the present invention as being the average number of hydroxyl groups substituted by an ester or ether group (in this case an ether for carboxymethyl starches) per monosaccharide unit of the polysaccharide. The carboxyalkyl starches preferably comprise units of the following formula: ## STR2 ## where X denotes a hydrogen atom, an alkali metal or alkaline earth metal such as Na, K 1/2, Li, NH 4, a quaternary ammonium or an organic amine. Preferably X denotes an Na + ion.

The carboxyalkyl starches which can be used according to the present invention are preferably the non-pregelatinized carboxyalkyl starches. The carboxyalkyl starches which can be used according to the present invention are preferably partially or completely crosslinked carboxyalkyl starches. The carboxyalkyl starches that may be used according to the present invention are preferably sodium salts of carboxyalkyl starches, in particular a sodium salt of potato carboxymethyl starch sold, for example, under the name PRIMOJEL by the company DMV International. More than 95% of the particles of this starch have a diameter of less than 100 microns and more particularly less than 65 microns. It is also possible to use starch acetates or acetylated starches in the invention, the acetylation being possible in particular with acetic anhydride or with vinyl acetate. As starch acetate can be mentioned PERFECTAMYL AC products proposed by the company AVEBE. According to the invention, it is also possible to use amphoteric starches, these amphoteric starches contain one or more anionic groups and one or more cationic groups. The anionic and cationic groups may be bonded to the same reactive site of the starch molecule or to different reactive sites; preferably they are linked to the same reactive site. The anionic groups may be of carboxylic, phosphate or sulfate type and preferably carboxylic. The cationic groups may be of primary, secondary, tertiary or quaternary amine type. The amphoteric starches are in particular chosen from compounds of the following formulas: R 'R

1 CH-CH-000M NCH-CH-COOM R 'R (V) COOM R

1 CH CH-COOM St-O- (CH 2) n N St-O- (CH 2) n N R "L.

Embedded image in which: St-O represents a starch molecule, R, which is identical or different from one another; , represents a hydrogen atom or a methyl radical, R ', identical or different, represents a hydrogen atom, a methyl radical or a -COOH group, n is an integer equal to 2 or 3, M, identical or different denotes a hydrogen atom, an alkali metal or alkaline earth metal such as Na, K, Li, NH 4, a quaternary ammonium or an organic amine, R "represents a hydrogen atom or an alkyl radical having from 1 to 18 atoms These compounds are in particular described in US Pat. 2-chloroethylaminodipropionic acid, that is to say the starches of formula (V) or (VI) in which R, R ', R "and M represent have a hydrogen atom and n is 2. Particularly potato starch modified with 2-chloroethylaminodipropionic acid neutralized with sodium hydroxide, marketed under the reference STRUCTURE SOLANACE by the company NATIONAL Starch. Preferably, one or more starches selected from starch phosphates and starch acetates will be used. According to the invention, the starch (s) modified with an acid derivative may represent from 0.01% to 10% by weight, preferably from 0.1% to 10% by weight and more particularly from 0.5% to 5% by weight relative to the total weight of the composition. The weight ratio of the amount of starch modified with an acid derivative to the amount of alkoxysilane is from 0.01 to 20, preferably from 0.05 to 10, more preferably from 0.1 to 5.

The composition according to the invention may comprise water, one or more organic solvents or a mixture of water and one or more organic solvents, the organic solvents being preferably chosen from C1-C4 lower alcohols, such as ethanol, isopropanol, t-butanol or n-butanol; polyols such as glycerol, propylene glycol, dipropylene glycol and polyethylene glycols; and their mixtures. In the composition according to the invention, the water may be present in a content ranging from 10% to 95% by weight, relative to the total weight of the composition, and preferably ranging from 20% to 95% by weight. The composition according to the invention may further comprise one or more thickening agents different from the modified starches as described above. The thickening agent (s) may be chosen from fatty acid amides obtained from C 10 -C 30 carboxylic acid (monoisopropanol, diethanol or coconut monoethanol amide, oxyethylenated alkyl ether carboxylic acid monoethanolamide). ), cellulosic thickeners (hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose), guar gum and its nonionic derivatives (hydroxypropylguar) and gums of microbial origin (xanthan gum, scleroglucan gum), nonionic starches and associative polymers . The associative polymer or polymers that may be used according to the invention are water-soluble polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules. Their chemical structure comprises hydrophilic zones, and hydrophobic zones characterized by at least one fatty chain preferably comprising from 10 to 30 carbon atoms. The associative polymer (s) which can be used according to the invention and which are different from the acrylic thickening polymers may be of anionic, cationic, amphoteric or nonionic type, such as the polymers sold under the names ELFACOS T210 and T212 by the company AKZO. Among all the additional thickening agents mentioned, the thickener (s) are preferably chosen from cellulose thickeners.

When present, the composition preferably comprises from 0.1 to 20% by weight, and more preferably from 0.2 to 10% by weight of additional thickening agent (s), relative to to the total weight of the composition. The composition according to the invention may further comprise one or more conditioning agents. By "conditioning agent" is meant according to the present invention any compound for improving the cosmetic properties of hair, particularly softness, detangling, touch, static electricity. Preferably, the conditioning agent is chosen from the group comprising cationic polymers, cationic surfactants, silicones such as organosiloxanes, linear or branched C8-C30 hydrocarbons, linear or branched C8-C30 fatty alcohols, esters of C 8 -C 30 fatty acids and of C 1 -C 30 alcohol and in particular esters of C 8 -C 30 fatty acids and of C 8 -C 30 fatty alcohol, esters of acid or of diacid in Cl -C7 and C8-C30 fatty alcohol, ceramides or ceramide analogues, and mixtures of these compounds. The term "cationic polymer" means a positively charged polymer when it is contained in the composition according to the invention. This polymer may carry one or more positive permanent charges or contain one or more cationizable functions within the composition according to the invention. The cationic polymer (s) that can be used as conditioning agents according to the present invention are preferably chosen from polymers containing primary, secondary, tertiary and / or quaternary amine groups that are part of the polymer chain or directly connected thereto, and having a molecular weight of between 500 and about 5,000,000 and preferably between 1,000 and 3,000,000. Among the cationic polymers, polyamines of the polyamine, polyaminoamide and quaternary polyammonium type may more particularly be mentioned. These are known products. They are for example described in French patents 2,505,348 and 2,542,997. Among these polymers, mention may be made of: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the units of the following formulas: ## STR5 ## wherein R 3 and R4, which may be identical or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, and preferably methyl or ethyl; R5, which may be identical or different, denote a hydrogen atom or a CH3 group; A, which may be identical or different, represent a linear or branched alkyl group having 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms; R6, R7, R8, which may be identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl group, and preferably an alkyl group having from 1 to 6 carbon atoms; X- denotes an anion derived from a mineral or organic acid such as a methosulphate anion, or a halide such as chloride or bromide. The copolymers of the family (1) may also contain one or more comonomer-derived units which may be chosen from the family of acrylamides, methacrylamides, diacetones acrylamides, acrylamides and methacrylamides substituted on the nitrogen by lower alkyls (C1-C4). ), acrylic or methacrylic acids or their esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, vinyl esters. Thus, among these copolymers of the family (1), mention may be made of: the copolymers of acrylamide and of dimethylaminoethyl methacrylate quaternized with dimethyl sulphate or with a dimethyl halide, such as that sold under the name HERCOFLOC by the company Hercules, the copolymers of acrylamide and of methacryloyloxyethyltrimethylammonium chloride described, for example, in the patent application EP-A-080976 and sold under the name BINA QUAT P 100 by the company CIBA GEIGY, the copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulphate sold under the name RETEN by the company HERCULES, - vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate copolymers quaternized or otherwise, such as the products sold under the name "GAFQUAT" by the company ISP such as "GAFQUAT 734" or "GAFQUAT 755 "or the products referred to as" COPOLYMER 845, 958 and 937 ". These polymers are described in detail in French Pat. Nos. 2,077,143 and 2,393,573, dimethylaminoethyl methacrylate / vinylcaprolactam / vinylpyrrolidone terpolymers, such as the product sold under the name GAFFIX VC 713 by the company ISP, vinylpyrrolidone copolymers. and methacrylamidopropyl dimethylamine sold in particular under the name STYLEZE CC 10 by the company ISP, and quaternized vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymers such as the product sold under the name "GAFQUAT HS 100" by the company ISP, and the crosslinked polymers of methacryloyloxyalkyl (C1-C4) trialkyl (C1-C4) ammonium salts such as the polymers obtained by homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl chloride, or by copolymerization of acrylamide with dimethylaminoethyl methacrylate quaternized with methyl chloride, homo or copolymerization followed by crosslinking with an olefinically unsaturated compound, in particular methylenebisacrylamide. It is more particularly possible to use a crosslinked acrylamide / methacryloyloxyethyltrimethylammonium chloride copolymer (20/80 by weight) in the form of a dispersion containing 50% by weight of said copolymer in mineral oil.

This dispersion is marketed under the name "SALCARE® SC 92" by the company CIBA. It is also possible to use a crosslinked homopolymer of methacryloyloxyethyltrimethylammonium chloride, for example dispersed in mineral oil or in a liquid ester. These dispersions are sold under the names "SALCARE® SC 95" and "SALCARE® SC 96" by the company CIBA. (2) polymers consisting of piperazinyl units and straight or branched chain alkylene or hydroxyalkylene divalent groups, optionally interrupted by oxygen, sulfur, nitrogen or aromatic or heterocyclic rings, as well as oxidation and / or quaternization of these polymers. Such polymers are in particular described in French Patents 2 162 025 and 2 280 361; (3) water-soluble polyaminoamides, prepared in particular by polycondensation of an acidic compound with a polyamine; these polyaminoamides may be crosslinked by an epihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, a bishalohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide or a oligomer resulting from the reaction of a bifunctional compound reactive with a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide, a epihalohydrin, a diepoxide or bis-unsaturated derivative; the crosslinking agent being used in proportions ranging from 0.025 to 0.35 moles per amine group of the polyaminoamide; these polyaminoamides can be alkylated or if they contain one or more tertiary amine functional groups, quaternized. Such polymers are described in particular in French patents 2 252 840 and 2 368 508 (4) polyaminoamide derivatives resulting from the condensation of polyalkylene polyamines with polycarboxylic acids, followed by alkylation with difunctional agents. Mention may be made, for example, of adipic acid dialkylaminohydroxyalkyldialkylenetriamine polymers in which the alkyl groups contain from 1 to 4 carbon atoms and preferably denotes a methyl, ethyl or propyl group, and the alkylene groups contain from 1 to 4 carbon atoms, and preferably denote the ethylene group. Such polymers are described in particular in French Patent 1,583,363. Among these derivatives, mention may be made more particularly of the adipic acid / dimethylaminohydroxypropyl / diethylene triamine polymers sold under the name "Cartaretine F, F4 or F8" by the company Sandoz. (5) polymers obtained by reacting a polyalkylene polyamine comprising two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids having from 3 to 8 carbon atoms. The molar ratio between the polyalkylene polyamine and the dicarboxylic acid being between 0.8: 1 and 1.4: 1; the polyaminoamide resulting therefrom being reacted with epichlorohydrin in a molar ratio of epichlorohydrin relative to the secondary amine group of the polyaminoamide of between 0.5: 1 and 1.8: 1. Such polymers are described in particular in the patents US Pat. Nos. 3,227,615 and 2,961,347. Polymers of this type are in particular sold under the name "Hercosett 57" by the company Hercules Inc. or under the name "PD 170" or "Delsette 101" by the company Hercules in the case of the adipic acid / epoxypropyl / diethylene triamine copolymer. (6) cyclopolymers of alkyl diallyl amine or of dialkyl diallyl ammonium such as homopolymers or copolymers comprising, as main constituent of the chain, units corresponding to formulas (X111) or (XIV): (CH2) k (CH2) k - (CH2) tCR12 C (R12) -CH2- (CH2) t CR12 C (R12) -CH

Wherein: k and t are 0 or 1, the sum k + t being equal to 1; R12 denotes a hydrogen atom or a methyl group; R10 and R11, independently of each other, denote an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group preferably has 1 to 5 carbon atoms, a lower amidoalkyl group (C1 -C4), or else R10 and R11 may designate, together with the nitrogen atom to which they are attached, heterocyclic groups, such as piperidinyl or morpholinyl; Y- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, phosphate. These polymers are described in particular in French patent 2,080,759 and in its certificate of addition 2,190,406.

R10 and R11, independently of one another, preferably denote an alkyl group having 1 to 4 carbon atoms. Among the polymers defined above, mention may be made more particularly of the homopolymer of dimethyldiallylammonium chloride sold under the name "Merquat 100" by the company Nalco (and its counterparts of low molecular weight average) and the copolymers of sodium chloride. diallyldimethylammonium and acrylamide sold under the name "MERQUAT 550". (7) the quaternary diammonium polymer containing recurring units having the formula (XV): embedded image wherein: R 13, R 14, R 15, and R16, which may be identical or different, are aliphatic, alicyclic, or arylaliphatic groups containing from 1 to 7 carbon atoms or lower hydroxyalkylaliphatic groups (C1-C4), or R13, R14, R15 and R16, together or separately, constitute with the nitrogen atoms to which they are attached, heterocycles optionally containing a second heteroatom other than nitrogen, or R13, R14, R15 and R16 represent a linear or branched C1-C6 alkyl group substituted with a nitrile group. ester, acyl, amide, or -CO-O-R17-D or -CO-NH-R17-D wherein R17 is alkylene having 1 to 10 carbon atoms and D is a quaternary ammonium group; Al and B1 represent polymethylenic groups containing from 2 to 20 carbon atoms which may be linear or branched, saturated or unsaturated, and which may contain, bound to or intercalated in the main chain, one or more aromatic rings, or one or more atoms oxygen, sulfur or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups, and X- denotes an anion derived from a mineral or organic acid; A1, R13 and R15 can form with the two nitrogen atoms to which they are attached a piperazine ring; furthermore, if Al denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene group, B1 may also denote a - (CH2) n -CO-D-OC- (CH2) p- group in which: n and p are integers varying from 2 to about 20, D denotes: a) a glycol residue of formula: -OZO-, where Z denotes a linear or branched hydrocarbon group, or a group corresponding to one of the following formulas: - (CH 2 -CH 2 -O) x-CH 2 -CH 2 - - [CH 2 -CH (CH 3) -O] y -CH 2 -CH (CH 3) - where x and y denote an integer of 1 to 4, representing a defined degree of polymerization and any one or any number from 1 to 4 representing an average degree of polymerization; b) a bis-secondary diamine residue such as a piperazine derivative; c) a bis-primary diamine residue of formula: -NH-Y-NH-, where Y denotes a linear or branched hydrocarbon group, or the divalent group -CH 2 -CH 2 -S-S-CH 2 -CH 2 -; d) a ureylene group of formula: -NH-CO-NH-. Preferably, X- is an anion such as chloride or bromide. These polymers have a number-average molecular weight generally of between 1000 and 100 000. Polymers of this type are described in particular in French patents 2,320,330, 2,270,846, 2,316,271, 2,336,434 and 2,413,907 and the patents U.S. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462, 2,261,002, 2,271,378, 3,874,870, 4,001,432, 3,929,990, 3,966,904, 4,005,193, and the like. 025 617, 4,025,627, 4,025,653, 4,026,945 and 4,027,020. Polymers which consist of recurring units corresponding to formula (XVI) can be used more particularly: R18 120 -N + (CH2) r N + ( In which: R18, R19, R20 and R21, which may be identical or different, denote an alkyl or hydroxyalkyl group having from 1 to 4 carbon atoms, r and s are integers varying from 2 to at about 20 and X- is an anion derived from a mineral or organic acid. A particularly preferred compound of formula (XVI) is that for which R18, R19, R20 and R21, represent a methyl group and r = 3, s = 6 and X = Cl, called Hexadimethrine chloride according to the INCI nomenclature (CTFA). (8) quaternary polyammonium polymers consisting of units of formula (XVII): ## STR5 ## ## STR2 ## (XVII) in which: R22, R23, R24 and R25, which may be identical or different, represent a hydrogen atom or a methyl, ethyl, propyl, R-hydroxyethyl, R-hydroxypropyl or -CH2CH2 (OCH2CH2) pOH group, where p is 0 or an integer between 1 and 6, provided that R22, R23, R24 and R25 do not simultaneously represent a hydrogen atom, t and u, which are identical or different, are integers inclusive between 1 and 6, v is 0 or an integer from 1 to 34, X is an anion such as a halide, A is a group of a dihalide or is preferably -CH2-CH2-O CH2-CH2.

Such compounds are described in particular in patent application EP-A-122,324. For example, the products "Mirapol® A 15", "Mirapol® AD1", "Mirapol® AZ1" and " Mirapol® 175 "sold by the company Miranol. (9) quaternary vinylpyrrolidone and vinylimidazole polymers such as, for example, the products sold under the names Luviquat® FC 905, FC 550 and FC 370 by the company B.A.S.F. (10) cationic polysaccharides, especially cationic celluloses and cationic cellulose derivatives and cationic galactomannan gums. Among the cationic polysaccharides, mention may be made more particularly of cellulose ether derivatives containing quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums. The cellulose ether derivatives containing quaternary ammonium groups described in French Patent 1,492,597. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose reacted with a trimethylammonium-substituted epoxide.

Cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, are described in particular in US Pat. No. 4 131 576, such as hydroxyalkyl celluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropyl-grafted celluloses in particular. with a salt of methacryloylethyl trimethylammonium, methacrylamidopropyltrimethylammonium, dimethyldiallylammonium. The cationic galactomannan gums are described more particularly in US Pat. Nos. 3,589,578 and 4,031,307, in particular guar gums containing cationic trialkylammonium groups.

For example, guar gums modified with a salt (for example chloride) of 2,3-epoxypropyltrimethylammonium are used. Other cationic polymers which can be used in the context of the invention are cationic proteins or hydrolysates of cationic proteins, polyalkyleneimines, in particular polyethyleneimines, polymers containing vinylpyridine or vinylpyridinium units, condensates of polyamines and of epichlorohydrin, quaternary polyureylenes and chitin derivatives. The proteins or hydrolysates of cationic proteins are in particular chemically modified polypeptides carrying at the end of the chain, or grafted onto it, quaternary ammonium groups. Their molecular weight may vary for example from 1500 to 10000, and in particular from 2000 to 5000 approximately. Among these compounds, there may be mentioned in particular: collagen hydrolysates bearing triethylammonium groups, such as the products sold under the name Quat-Pro E by the company MAYBROOK and referred to in the CTFA dictionary as "Triethonium Hydrolyzed Collagen Ethosulfate"; collagen hydrolysates bearing trimethylammonium chloride and trimethylstearylammonium groups, sold under the name "Quat-Pro S" by the company MAYBROOOK and referred to in the CTFA dictionary "Steartrimonium Hydrolyzed Collagen"; animal protein hydrolysates bearing trimethylbenzylammonium groups, such as the products sold under the name Crotein BTA by the company CRODA and referred to in the CTFA dictionary as "Benzyltrimonium hydrolyzed animal protein"; protein hydrolysates carrying on the polypeptide chain quaternary ammonium groups comprising at least one alkyl group having from 1 to 18 carbon atoms. Among these protein hydrolysates, mention may be made, inter alia, of: - "Croquat L", the quaternary ammonium groups of which contain a 0-12 alkyl group; "Croquat M", the quaternary ammonium groups of which contain alkyl groups of Cao-Cl 3; "Croquat S" whose quaternary ammonium groups contain a C13 alkyl group; "Crotein Q" whose quaternary ammonium groups contain at least one alkyl group having from 1 to 18 carbon atoms. These different products are sold by Croda.

Other quaternized proteins or hydrolysates are, for example, those corresponding to formula (XVIII): ## STR2 ## in which X- is an anion of an organic or inorganic acid, denotes a residue of protein derived from collagen protein hydrolysates, R29 denotes a lipophilic group having up to 30 carbon atoms, R30 represents an alkylene group having 1 to 6 carbon atoms. Mention may be made, for example, of the products sold by the company Inolex under the name "Lexein QX 3000", referred to in the CTFA dictionary as "Cocotrimonium Collagen Hydrolysate".

Mention may also be made of quaternized vegetable proteins such as wheat, corn or soya proteins: as quaternized wheat proteins, mention may be made of those marketed by the company Croda under the names "Hydrotriticum WQ or QM", referred to in the dictionary CTFA "Cocodimonium Hydrolysed wheat protein", "Hydrotriticum QL" called in the CTFA dictionary "Laurdimonium hydrolysed wheat protein", or "Hydrotriticum QS", called in the CTFA dictionary "Steardimonium hydrolysed wheat protein". Among all the cationic polymers that may be used in the context of the present invention, it is preferred to use the cationic cyclopolymers as defined above, in particular homopolymers or copolymers of dimethyldiallylammonium chloride, sold under the names "Merquat". 100 "," MERQUAT 550 "and" MERQUAT S "by NALCO, quaternary vinylpyrrolidone and vinylimidazole polymers, cationic polysaccharides and mixtures thereof.

The conditioning agent (s) that may be used according to the invention may be chosen from cationic surfactants. The term "cationic surfactant" means a positively charged surfactant when it is contained in the composition according to the invention. This surfactant may carry one or more positive permanent charges or contain one or more cationizable functions within the composition according to the invention. The cationic surfactant or surfactants that can be used as conditioning agents according to the present invention are preferably chosen from primary, secondary or tertiary fatty amines, optionally polyoxyalkylenated, or their salts, quaternary ammonium salts, and mixtures thereof. Fatty amines generally comprise at least one C8-C30 hydrocarbon chain. Among the fatty amines that can be used according to the invention, mention may be made, for example, of stearylamidopropyl dimethylamine and distearylamine. As quaternary ammonium salts, there may be mentioned, for example: - those having the following general formula (XIX): - + R8 / R10 NX R9 R11 (XIX) in which the groups R8 to R11, which can be identical or different, represent a linear or branched aliphatic group containing from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to R11 denoting a group comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms. The aliphatic groups can comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens. The aliphatic groups are for example selected from C1-30 alkyl, C1-30 alkoxy, polyoxyalkylene (C2-C6), C1-30 alkylamide, (C1-C22) alkylamido (C2-C6) alkyl, alkyl ( C12-C22) acetate, and C1-30 hydroxyalkyl; X- is an anion selected from the group of halides, phosphates, acetates, lactates, (C1-C4) alkyl sulfates, (C1-C4) alkyl or (C1-C4) alkylsulphonates. Among the quaternary ammonium salts of formula (XIX), tetraalkylammonium salts, for example dialkyl dimethyl ammonium or alkyl trimethyl ammonium salts in which the alkyl group comprises from about 12 to 22 carbon atoms, are preferred. carbon, in particular the salts of behenyltrimethylammonium, distearyldimethylammonium, cetyltrimethylammonium, benzyldimethylstearylammonium or, on the other hand, the salt of palmitylamidopropyltrimethylammonium, stearamidopropyltrimethylammonium, the salt of staramidopropyldimethylcétéaryl ammonium, or the salt of staramidopropyldimethyl (myristyl acetate) ammonium. sold under the name CERAPHYL® 70 by VAN DYK. It is particularly preferred to use the chloride salts of its compounds. the quaternary ammonium salts of imidazoline, for example those of the following formula (XX): ## STR1 ## wherein R12 is alkenyl or alkyl having 8 to 30 carbon atoms, for example fatty acid derivatives of tallow, R13 represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group having 8 to 30 carbon atoms, R14 represents a C1-C4 alkyl group, R15 represents a hydrogen atom, a C1-C4 alkyl group, X- is an anion chosen from the group of halides, phosphates, acetates, lactates alkyl, sulphates, alkyl or alkylaryl sulphonates, the alkyl and aryl groups of which preferably comprise 1 to 20 carbon atoms and 6 to 30 carbon atoms, respectively. Preferably, R12 and R13 denote a mixture of alkenyl or alkyl groups containing from 12 to 21 carbon atoms, for example fatty acid derivatives of tallow, R14 denotes a methyl group, R15 denotes a hydrogen atom. Such a product is for example marketed under the name REWOQUAT® W 75 by the company REWO; the quaternary di or triammonium salts of formula (XXI): X

++ R17 R19 R1 N (CH2) 3 N-R21 R18 R20 (XXI) wherein R16 denotes an alkyl group having from about 16 to 30 carbon atoms optionally hydroxylated and / or interrupted by one or more oxygen atoms, R17 is selected from hydrogen or an alkyl group having from 1 to 4 carbon atoms or the following group: 17 1 N (CH 2) 3 -R 18 Y R '16, R 17, R 18, R 18, R 19, R20 and R21, which are identical or different, are chosen from hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and X- and Y- are anions chosen especially from the group of halides, acetates, phosphates, nitrates and alkyl (C1-C6) sulfates, in particular methylsulfate and ethylsulfate. Such compounds are for example the Finquat CT-P proposed by FINETEX (Quaternium-89), the Finquat CT proposed by FINETEX (Quaternium 75), the Condicate CT proposed by INNOSPEC ACTIVE CHEMICALS (Quaternium-75) ; quaternary ammonium salts containing at least one ester function, such as those of the following formula (XXII): ## STR2 ## in which: R22 is selected from C 1 -C 6 alkyl groups and C 1 -C 6 hydroxyalkyl or dihydroxyalkyl groups; R 23 is chosen from: II - the group R 26 C - the groups R 27 which are linear or branched, saturated or unsaturated C 1 -C 22 hydrocarbon-based groups, - the hydrogen atom, R 25 is chosen from: 2 X R 24 X (XXII) - the group R28 - the groups R29 which are linear or branched, saturated or unsaturated C1-C6 hydrocarbon groups, - the hydrogen atom, R24, R26 and R28, which are identical or different, are chosen from C7-C21 hydrocarbon groups, linear or branched, saturated or unsaturated; r, s and t, identical or different, are integers ranging from 2 to 6; y is an integer from 1 to 10; x and z, which are identical or different, are integers ranging from 0 to 10; X- is a simple or complex anion, organic or inorganic; with the proviso that the sum x + y + z is from 1 to 15, that when x is 0 then R23 is R27 and that when z is 0 then R25 is R29. The alkyl groups R22 may be linear or branched and more particularly linear.

Preferably, R 22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group. Advantageously, the sum x + y + z is from 1 to 10. When R 23 is a hydrocarbon R 27 group, it may be long and have 12 to 22 carbon atoms, or short and have from 1 to 3 carbon atoms.

When R 25 is a hydrocarbon R 29 group, it preferably has 1 to 3 carbon atoms. Advantageously, R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon groups, and more particularly from linear or branched, saturated or saturated C11-C21 alkyl and alkenyl groups. or unsaturated. Preferably, x and z, which are identical or different, are equal to 0 or 1. Advantageously, y is equal to 1. Preferably, r, s and t, identical or different, are equal to 2 or 3, and even more particularly are equal to 2 .

The anion X- is preferably a halide (chloride, bromide or iodide) or an alkyl sulphate more particularly methyl sulphate. However, it is possible to use methanesulphonate, phosphate, nitrate, tosylate, an anion derived from an organic acid such as acetate or lactate or any other anion compatible with ammonium with an ester function.

The X- anion is even more particularly chloride or methylsulfate. In the composition according to the invention, the ammonium salts of formula (XXII) are used more particularly in which: R 22 denotes a methyl or ethyl group, x and y are equal to 1; z is 0 or 1; r, s and t are 2; R 23 is chosen from: O - the group R 26 C - methyl, ethyl or C 14 -C 22 hydrocarbon groups, - the hydrogen atom; R 25 is selected from: O - the group R 28 C - the hydrogen atom; R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C13-C17 hydrocarbon groups, and preferably from linear or branched, saturated or unsaturated C13-C17 alkyl and alkenyl groups; . Advantageously, the hydrocarbon groups are linear. Examples which may be mentioned include compounds of formula (XXII) such as the salts (especially chloride or methylsulfate) of diacyloxyethyl-dimethylammonium, diacyloxyethyl-hydroxyethyl-methylammonium, monoacyloxyethyl-dihydroxyethyl-methylammonium, triacyloxyethylmethylammonium, monoacyloxyethyl-hydroxyethyl dimethylammonium and mixtures thereof. The acyl groups preferably have from 14 to 18 carbon atoms and come more particularly from a vegetable oil such as palm oil or sunflower oil. When the compound contains more than one acyl group, the latter groups may be identical or different. These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldiisopropanolamine optionally oxyalkylenated on Cao-C3o fatty acids or on mixtures of Cao-C3o fatty acids. plant or animal origin, or by transesterification of their methyl esters. This esterification is followed by quaternization using an alkylating agent such as an alkyl halide (preferably methyl or ethyl), a dialkyl sulphate (preferably methyl or ethyl), methanesulfonate. methyl, para-toluenesulfonate methyl, chlorohydrin glycol or glycerol.

Such compounds are, for example, sold under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, NOXAMIUMO by the company CECA, REWOQUAT® WE 18 by the company REWO-WITCO.

The composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority by weight of diester salts. It is also possible to use the ammonium salts containing at least one ester function described in US-A-4,874,554 and US-A-4,137,180.

The particularly preferred cationic surfactant or surfactants that can be used according to the invention are chosen from compounds of formula (XIX) or of formula (XXII), methyl (C 9 -C 19) alkyl (C 10 -C 20) alkylamidoethylimidazolium salts, and staramidopropyl dimethylamine. Among all the cationic surfactants that may be present in the composition according to the invention, it is preferred to choose the salts of cetyl trimethyl ammonium, behenyl trimethyl ammonium, di (palmitoyl-oxyethyl) hydroxyethyl methyl ammonium, di (stearoyl-oxyethyl) hydroxyethyl methyl ammonium, methyl (C9-C19) alkyl (C10-C20) alkylamidoethylimidazolium, stearamidopropyltrimethylammonium salt, stearamidopropyl dimethylamine, stearamidopropyldimethylcearylammonium salt, and mixtures thereof. The cationic surfactant (s) may be present in a content ranging from 0.01% to 15% by weight, relative to the total weight of the composition of the invention, and preferably ranging from 0.1% to 10% by weight. and more preferably from 0.2 to 5% by weight.

When the composition in accordance with the invention comprises one or more cationic surfactants, the ratio by weight of starches modified with a cationic acid / surfactant derivative (s) generally ranges from 0.1 to 50, even more preferably from 1 to at 25, more preferably from 1 to 10. Among the silicones that can be used as conditioning agents in accordance with the present invention, mention may be made without limitation of: 1. Volatile silicones: These have a boiling point of between 60 ° C. C and 260 ° C. Among this type of silicone, mention may be made of: (a) cyclic silicones containing from 3 to 7 silicon atoms, and preferably from 4 to 5. It is, for example, octamethylcyclo-tetrasiloxane sold under the name of "VOLATILE SILICONE 7207®" by the company UNION CARBIDE or "SILBIONE 70045 V2®" by the company RHONE POULENC, decamethylcyclopentasiloxane sold under the name "VOLATILE SILICONE 7158®" by the company UNION CARBIDE, "SILBIONE 70045 V5®" by the company RHONE POULENC, as well as their mixtures. Mention may also be made of cyclopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the "VOLATILE SILICONE FZ 3109®" sold by UNION CARBIDE, which is a cyclocopolymer dimethylsiloxane / methyloctylsiloxane; (b) linear volatile silicones having 2 to 9 silicon atoms and having a viscosity of less than or equal to 5.10-6 m2 / s at 25 ° C. It is, for example, hexamethyldisiloxane sold under the name "SILBIONE 70041 V0,65®" by the company RHONE POULENC. This type of product is described in the article by TODD & BYERS "Volatile silicone fluids for cosmetics", Cosmetics and Toiletries, Vol. 91, Jan 76, pages 27 32. II. Non-volatile silicones: They consist mainly of polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes and organomodified polysiloxanes, as well as their mixtures. They can be in the form of oils, gums and resins. Among the polyalkylsiloxanes, mention may be made of linear polydimethylsiloxanes with a viscosity of greater than 5.10-6 m 2 / s, and preferably less than 2.6 m 2 / s, ie: with trimethylsilyl end groups, for example, and the "SILBIONE®" oils of the 70047 series marketed by the company RHONE POULENC, the Wacker Belsil DM 60000 WACKER oil or certain "VISCASIL®" from the company GENERAL ELECTRIC, 25-with trihydroxysilyl end groups, such as the Oils from the "48 V®" series from RHONE POULENC. In this class of polyalkylsiloxanes, mention may also be made of the polyalkylsiloxanes sold by GOLDSCHMIDT under the names "ABILWAX 9800®" and "ABILWAX 9801®", which are polyalkyl (C1-20) siloxanes. Among the polyalkylarylsiloxanes, mention may be made of linear and / or branched polydimethylphenylsiloxanes, linear and / or branched polydimethyldiphenylsiloxanes, with a viscosity of 10-5 to 5 × 10 -2 m 2 / s, such as, for example: the RHODORSIL® 763 oil from RHONE POULENC, - the "SILBIONE®" oils of the 70641 series from RHONE POULENC, such as the "SILBIONE 70641 V30®" and "SILBIONE 70641 V200®" oils, - the "DC 556®" Cosmetic Grad Fluid product from DOW CORNING, - the PK series silicones from BAYER, such as "PK200", - BAYER PN, PH series silicones, such as "PN 1000®" and "PH 1000®", - certain oils from the SF series of GENERAL ELECTRIC, such as the "SF 1250®", "SF 1265®", "SF 1154®", "SF 1023®".

The silicone gums, in accordance with the present invention, are polydiorganosiloxanes with a high average molecular mass ranging from 200,000 to 1,000,000, used alone or as a mixture in a solvent chosen from volatile silicones and polydimethylsiloxane (PDMS) oils. , polyphenylmethylsiloxane oils (PPMS), isoparaffins, methylene chloride, pentane, dodecane, tridecane, tetradecane or their mixtures. For example, compounds having the following structures are mentioned: poly [(dimethylsiloxane) / (methylvinylsiloxane)] gums, poly [(dimethylsiloxane) / (diphenylsiloxane)] gums, poly [(dihydrogéno dimethylsiloxane) gums / (divinylsiloxane) )], poly [(dimethylsiloxane) / (phenylmethylsiloxane)] gums, poly [(dimethylsiloxane) / (diphenylsiloxane) / (methylvinylsiloxane)] gums. We can mention the Mirasil DM300 000 gum from Rhodia.

Mention may also be made, for example, without limitation, of the following mixtures: 1) mixtures formed from an end-hydroxylated polydimethylsiloxane (DIMETHICONOL according to the CTFA nomenclature), and a cyclic polydimethylsiloxane (CYCLOMETHICONE according to the CTFA nomenclature), such as the "Q2 1401®" or DOW CORNING 1501 FLUID products sold by Dow Corning; 2) mixtures formed from a polydimethylsiloxane gum with a cyclic silicone, such as the product "SF 1214 SILICONE FLUID®" from GENERAL ELECTRIC, which is an "SE 30®" gum of MW 500,000 (-Mn) solubilized in "SF 1202 SILICONE FLUID®" (decamethylcyclopentasiloxane); 3) blends of two PDMSs of different viscosities, in particular a PDMS gum and a PDMS oil, such as the "SF 1236®" and "CF 1241®" products from the company GENERAL ELECTRIC. The product "SF 1236®" is the mixture of a "SE 30®" gum defined above with a viscosity of 20 m2 / s and a "SF 96®" oil with a viscosity of 5.106 m2 / s (15% "SE 30®" gum and 85% "SF 96®" oil).

The product "CF 1241®" is the mixture of a gum "SE 30®" (33%) and a PDMS (67%) of viscosity 10-3 m / s. The organopolysiloxane resins used in accordance with the invention are crosslinked siloxane systems containing the units: R 2 SiO 2 12, RSiO 3, 2 and SiO 4 12 in which R represents a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group. Among these products, those that are particularly preferred are those in which R denotes a lower (C1-C4) alkyl group or a phenyl group. Among these resins, mention may be made of the product sold under the name "Dow Corning 593®" or those sold under the names "SILICONE FLUID SS 4230" and "SILICONE FLUID SS 4267" by the company GENERAL ELECTRIC, which are dimethyl / trimethylpolysiloxanes . The organomodified silicones, in accordance with the present invention, are silicones as defined above, comprising in their general structure one or more organofunctional groups directly attached to the siloxane chain or attached via a hydrocarbon group. Mention may be made, for example, of silicones comprising: a) perfluorinated groups such as trifluoroalkyls, for example those sold by the company General Electric under the names "FF.150 Fluorosilicone Fluid" or by the company Shin Etsu under the names "FF.150 FLUOROSILICONE FLUID®"; the terms "X-22-819®", "X-22-82®", "X-22-821®" and "X-22-822®"; b) hydroxyacylamino groups such as, for example, those described in the patent application EP 0 342 834 and in particular the silicone sold by Dow Corning under the name "Q2-8413®"; c) thiol groups as in the silicones "X 2-8360®" of the Dow Corning Company or the "GP 72A®" and "GP 71®" of GENESEE; d) non-quaternized amino groups, such as in GENESEE's "GP 4 SILICONE FLUID®", GENESEE "GP 7100®", DOW CORNING "Q2 8220®", UNION AFL 40® " CARBIDE or the silicone called "Amodimethicone" in the CTFA dictionary; e) carboxylate groups, such as the products described in patent EP 186 507 of CHISSO CORPORATION; f) hydroxyl groups, such as, for example, the hydroxyalkyl-functional polyorganosiloxanes described in the patent application FR 8 516 334. The product marketed by Dow Corning under the name DC 190 may be particularly cited; g) alkoxylated groups such as in the silicone copolymer "F 755®" from SWS SILICONES and the products "ABILWAX 2428®", "ABILWAX 2434®", "ABILWAX 2440®" from the company GOLDSCHMIDT; h) acyloxyalkyl groups, such as, for example, the polyorganopolysiloxanes described in the patent application FR 8 817 433, corresponding to the following formula (XXIV): O-Si (R 2) 3 (R 2) 3 -Si r (XXIV) in which: R2 is methyl, phenyl, OCOR ", hydroxyl, only one of R2 per silicon atom may be OH; R'2 is methyl, phenyl, 60 mol% at least of all R2 and R groups; 2 is methyl; R "is C 8 -C 20 alkyl or alkenyl; R represents a divalent, linear or branched C2-C18 hydrocarbon alkylene; r is between 1 and 120 inclusive; - p, q is 0 or is less than 0.5 p, p + q being between 1 and 30 inclusive: the polyorganosiloxanes of formula (XXIV) may contain groups: cl-17 i-OH o 2/2 in proportions not exceeding 15% of the sum p + q + r; i) quaternary ammonium groups, as in the products "X2 81 08®" and "X2 81 09®", the product "ABIL K 3270®" from the company GOLDSCHMIDT; j) amphoteric or betaine groups, such as in the product sold by GOLDSCHMIDT under the name "ABIL B 9950®"; k) bisulfite groups, such as, for example, in the products sold by GOLDSCHMIDT under the names "ABIL S 201®" and "ABIL S 255®".

I) polyethyleneoxy and / or polypropyleneoxy groups optionally containing C6-C24 alkyl groups such as the products known as dimethicone copolyol marketed by the company Dow Corning under the name DC 1248 or the oils SILWET L 722, L 7500, L 77, L 711 of the company UNION CARBIDE and the alkyl (C12) methicone copolyol marketed by the company Dow Corning under the name Q2 5200. According to the invention, it is also possible to use silicones comprising a polysiloxane portion and a portion consisting of a chain organic nonsilicone, one of the two portions constituting the main chain of the polymer the other being grafted on said main chain. These polymers are for example described in patent applications EP-A-412 704, EP-A-412 707, EP-A-640 105 and WO 95/00578, EP-A-582 152 and WO 93/23009 and the US Pat. Nos. 4,693,935, 4,728,571 and 4,972,037. These polymers are preferably anionic or nonionic.

Such polymers are, for example, the copolymers that can be obtained by radical polymerization from the monomer mixture consisting of: a) 50 to 90% by weight of tert-butyl acrylate; b) 0 to 40% by weight of acrylic acid; c) 5 to 40% by weight of silicone macromer of formula (XXV): ## STR2 ## wherein CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH3 (XXV) with v being a number from 5 to 700; the percentages by weight being calculated with respect to the total weight of the monomers. Other examples of grafted silicone polymers are in particular polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connection link, mixed polymeric units of the poly (meth) acrylic acid and poly type. alkyl (meth) acrylate; and polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connecting member, polymeric units of the poly (meth) acrylate isobutyl type. According to the invention, all the silicones can also be used in the form of emulsions, nanoemulsions or microemulsions. The polyorganosiloxanes that are particularly preferred according to the invention are: non-volatile silicones chosen from the family of polyalkylsiloxanes containing trimethylsilyl end groups, such as oils having a viscosity of between 0.2 and 2.5 m 2 / s at 25 ° C. that the oils of the DC200 series of DOW CORNING in particular that of viscosity 60 000 cSt, SILBIONE series 70047 and 47 and more particularly the oil 70 047 V 500 000 marketed by Rhodia Chimie, the polyalkylsiloxanes end groups dimethylsilanol such dimethiconols or polyalkylarylsiloxanes such as SILBIONE 70641 V 200 oil marketed by Rhodia Chimie; polysiloxanes with amino groups such as amodimethicones or trimethylsilylamodimethicone. The viscosities of the silicones can in particular be determined by ASTM D445-97 (viscometry). When the conditioning agent of the composition according to the invention is a hydrocarbon, it is preferably a hydrocarbon, linear or branched C8-C30. Among the liquid hydrocarbons at ambient temperature which correspond to this definition, mention may especially be made of isododecane, isohexadecane and its isomers (such as 2,2,4,4,6,6-heptamethylnonane), isoeicosane and the like. isotetracosane, the isomers of said compounds, n-nonadecane, ndodecane, n-undecane, n-tridecane, n-pentadecane, petrolatum oil and mixtures of these hydrocarbons. Isododecane or one of its isomers or vaseline oil is preferably used according to the invention. When the conditioning agent is a fatty alcohol, it is of the linear or branched, saturated or unsaturated, C 8 -C 30 type. Among these, there may be mentioned, for example, 2-butyl octanol, lauric alcohol, 2-octyl dodecanol, oleic alcohol, isocetyl alcohol, isostearyl alcohol, stearyl alcohol and cetyl alcohol. , behenyl alcohol and mixtures thereof. When the conditioning agent is a fatty ester, it may be either an ester of a C 8 -C 30 fatty acid and a C 1 -C 30 monohydric alcohol, and especially a C 8 -C 18 fatty acid ester. C30 and C8-C30 fatty alcohol, an ester of a C1-C7 acid or diacid and a C8-C30 fatty alcohol. Among these esters, mention may be made, for example, of ethyl, isopropyl, ethyl-2-hexyl and 2-octyldecyl palmitate, of isopropyl, butyl, cetyl and 2-octyldecyl myristate. butyl and hexyl stearate, hexyl-2-hexyldecyl laurate, isononyl isononanoate, dioctyl malate, myristyl myristate, cetyl palmitate, and mixtures thereof.

This may also be a polyol ester and especially glycerine such as a natural triglyceride or synthetic. As natural triglycerides include vegetable oils such as avocado oil, olive oil, wheat germ oil, sunflower oil, argan oil, corn , soya, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, castor, avocado, olive, rapeseed, copra, sweet almond , safflower, bancoulier nut, camellina, tamanu, babassu, pracaxi and their mixtures. Ceramides or ceramide analogues, such as glycoceramides which can be used as conditioning agents in the compositions according to the invention, are known per se and are natural or synthetic molecules which can satisfy the following general formula (XXVI): R 3 CHOH In which: R1 denotes a linear or branched, saturated or unsaturated alkyl group derived from C14-C30 fatty acids, this group possibly being substituted with a hydroxyl group in the form of a hydroxyl group; alpha position, or an omega-hydroxyl group esterified with a saturated or unsaturated C16-C30 fatty acid; R2 denotes a hydrogen atom or a (glycosyl) n, (galactosyl), or sulphogalactosyl group, in which n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8; - R3 denotes a C15-C26 hydrocarbon group, saturated or unsaturated in the alpha position, this group may be substituted with one or more C1-C14 alkyl groups; it being understood that in the case of natural ceramides or glycoceramides, R3 may also designate a C15-C26 alpha-hydroxyalkyl group, the hydroxyl group optionally being esterified with a C16-C30 alphahydroxy acid. The ceramides preferred in the context of the present invention are those described by DOWNING in Arch. Dermatol, Vol. 123, 1381-1384, 1987, or those described in French patent FR 2,673,179. The most preferred ceramides or ceramides according to the invention are the compounds for which R 1 denotes a saturated or unsaturated alkyl derived from C 16 fatty acids. -C22; R2 denotes a hydrogen atom; and R3 denotes a C15 saturated linear group. Such compounds are, for example: N-linoleoyldihydrosphingosine, N-oleoyldihydrosphingosine, N-palmitoyldihydrosphingosine, N-stearoyldihydrosphingosine, N-behenoyldihydrosphingosine, or mixtures of these compounds.

Still more preferably, ceramides are used for which R1 denotes a saturated or unsaturated alkyl group derived from fatty acids; R2 is a galactosyl or sulfogalactosyl group; and R3 denotes a group --CH = CH- (CH2) 12 -CH3. Among all these conditioning agents, one or more conditioning agents chosen from silicones such as organosiloxanes and cationic polymers are preferably used. The composition according to the invention preferably contains from 0.01 to 20% by weight and more preferably from 0.05 to 10% by weight of conditioning agent (s), relative to the total weight of the composition.

The composition according to the invention may further comprise one or more conventional additives well known in the art, different from the compounds defined above. As examples of additives that may be used according to the invention, mention may be made of anionic surfactants, amphoteric or zwitterionic surfactants, nonionic surfactants, proteins, protein hydrolysates, vitamins, reducing agents, plasticizers, softeners, anti-foam agents, moisturizing agents, pigments, clays, mineral fillers, UV filters, abrasive agents (pumice, apricot kernel powder), mineral colloids, peptizers, solubilizers perfumes, preservatives, pearlescent agents, propellants, anti-dandruff agents (for example zinc pyrithione, octopirox, selenium sulphide, ellagic acid and derivatives), anti-hair loss agents, hair regrowth agents; these additives being different from the compounds defined above. Those skilled in the art will take care to choose the optional additive (s) and their quantity so that they do not adversely affect the properties of the compositions of the present invention.

The additive or additives are generally present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition. The compositions according to the invention may be in any of the galenical forms conventionally used for topical application and especially in the form of aqueous, hydroalcoholic, oil-in-water (O / W) or water-in-oil ( E / H) or multiple (triple: W / H / E or H / E / H), aqueous gels, or dispersions of a fatty phase in an aqueous phase using spherules, these spherules being polymeric nanoparticles such as nanospheres and nanocapsules or lipid vesicles of ionic and / or nonionic type (liposomes, niosomes, oleosomes). These compositions are prepared according to the usual methods. In addition, the compositions used according to the invention may be more or less fluid and have the appearance of a white or colored cream, an ointment, a milk, a lotion, a serum, a paste or foam. They may optionally be applied to keratin materials in the form of an aerosol. They may also be in solid form, for example in the form of a stick. Of course, one skilled in the art will take care to choose the optional compounds to add to the composition according to the invention, such that the advantageous properties intrinsically attached to the composition according to the invention are not, or not substantially impaired by the addition or additions envisaged. As indicated above, the subject of the invention is also a non-therapeutic cosmetic treatment method for treating keratin materials, in particular the hair, comprising the application to said materials of a composition as described above. This application may or may not be followed by rinsing. When the application of the composition is followed by rinsing the exposure time of the composition on the keratin materials ranges from a few seconds to 60 minutes, better from 5 seconds to 30 minutes, even better from 10 seconds to 10 minutes. Whether in rinsed mode or in rinsed mode, the application of the composition can be done in the presence of heat. The heater may be a hair dryer, a helmet, a round or flat iron. The heating temperature can be between 40 and 220 ° C.

The application of the composition according to the invention to hair can be done on dry hair or wet hair. It can in particular be carried out after shampooing or after pretreatment at acidic or basic pH. The subject of the invention is also the use of a composition according to the invention for caring for and / or shaping keratinous substances, in particular keratinous fibers, and in particular human keratinous fibers such as the hair. The following examples are intended to illustrate the invention without being limiting in nature.

EXAMPLE 1 The care composition (A) rinsed is prepared from the ingredients indicated in the table below, the amounts of which are expressed in percent by weight of active ingredients, relative to the total weight of the composition. Compositions A (Invention) 3-Aminopropyltriethoxysilane 1 Potato Starch Acetate 1 (PERFECTAMYL AC from AVEBE) HYDROXYETHYLCELLULOSE (NATROSOL 0 2 250 HHR from ASHLAND) Cetyl Stearyl Alcohol (C16 / C18 50/50) 3.5 Myristate Blend myristyl, cetyl palmitate 0.7 and stearyl stearate (MIRACETI LASERSON) Behenyltrimethyl ammonium chloride 1.58 79% solution in isopropanol (GENAMIN KDMP CLARIANT) Lactic acid qs pH 9 Perfume qs Digluconate 0.2% water, 100% water. Applied as after rinsed shampoo, the composition (A) gives the hair mass, volume and a homogeneous touch from the root to the tip.

Moreover, this composition makes it possible to facilitate the shaping of fine hair and to provide a better definition of loop to curly hair.

EXAMPLE 2 Composition (B) is prepared from the ingredients indicated in the table below, the amounts of which are expressed as a percentage by weight of active ingredients, relative to the total weight of the composition. Compositions B (inventio n) 3-aminopropyltriethoxysilane 4.4 hydroxypropyl maize starch phosphate (AKZO NOBEL STRUCTURE ZEA) Hydroxyethylcellulose (NATROSOL 0 725 HHR from ASHLAND) Lactic acid 1.75 pH agent qs pH 9 Deionized water qs 100% Composition C is prepared from the ingredients indicated in the table below, the amounts of which are expressed as a percentage by weight of active ingredients, relative to the total weight of the composition. Compositions C Bis-Diglyceryl polyacyladipate-2 (SOFTISAN 0,15,649 of SASOL) Amino silicone in aqueous emulsion at 60% 0,96 MA (DOW CORNING 2-8299 Cationic Emulsion of Dow Corning) Hydroxyethylcellulose ((NATROSOL 250 HHR 0 , 2 of ASHLAND) Cetylstearyl alcohol (C16 / C18 50/50) 3 Blend of myristyl myristate, cetyl palmitate 0.25 and stearyl stearate (MIRACETI deLASERSON) LAURYL PEG / PPG-18/18 METHICONE 72% 0.18 active ingredient (DOW CORNING 5200 DOW CORNING FORMULATION AID) Behenyltrimethyl ammonium chloride 1.58 79% solution in isopropanol (GENAMIN KDMP from CLARIANT) pH qs pH 3.5 PEG-180 ( Polyethylene Glycol) 2 L-Glycine 0.01 D-Panthenol 0.1 Vitamin E Acetate 0.1 2-Oleamido-1,3-octadecanediol 0.01 Perfume qs Preservatives, colorants qs Water gsp100% Compositions B and C are packaged in a double-body device consisting of two compartments and a dispensing head for delivering a m mixture consisting of equal amounts of compositions B and C.

Applied as after rinsed shampoo, the mixture of compositions (B) and (C) (50/50 by weight) gives the hair mass, volume and a uniform feel from the root to the tip.

In addition, this composition makes it possible to facilitate the shaping of fine hair and to provide a better definition of loop to curly hair.

Claims (11)

REVENDICATIONS1. A particularly cosmetic composition comprising: i) one or more alkoxysilanes, and (ii) one or more starches modified with an acid or an acid derivative. 2. Composition according to the preceding claim, characterized in that the alkoxysilane (s) is (are) chosen from the following compounds: - compounds of formula (I): R 1 R / 4 / NR - Si-R 5 R 2 R 6 (1) wherein: R4 is halogen, ORa or Ria; R5 is halogen, ORb or R2a; R6 represents a halogen, an ORc or Ria group; R1 and R2 represent, independently of one another, a hydrogen atom, a saturated or unsaturated hydrocarbon group, linear or branched, preferably R1 or R2 necessarily denoting a hydrogen atom, R3, Ra, Rb , Rc, Ria, R2a, Ria represent, independently of one another, a saturated or unsaturated hydrocarbon group, linear or branched, optionally carrying additional chemical groups such as acidic or amine groups, Ra, Rb and Rc may also designate hydrogen, and at least two of the groups R4, R5 and R6 being different from the groups Ria, R2a and R3a. compounds of formula (II): (R21O) x (R22) ySi- (B) p- [NR23- (Ba) pa] q- [NR23, - (Bb) Ipb] ga- Si (R22a) an (OR21a) wherein R21, R22, R21a and R22a each independently represent, from each other, a linear or branched, saturated or unsaturated hydrocarbon chain, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups selected from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups, 25R23 and R23a each independently represent a hydrogen atom or a saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing a or more heteroatoms, optionally interrupted or substituted with one or more ether groups, alcohol ester with CIC20, amine, carboxyl, C6030 aryl, hydroxyl or carbonyl, or an aromatic ring, heterocyclic or not, optionally substituted with one or more ester groups of alcohol in CIC20, amine, amide, carboxyl, hydroxyl, carbonyl or acyl, preferably R23 and R23a representing a hydrogen atom. x is an integer ranging from 1 to 3, y = 3-x, xa is an integer ranging from 1 to 3, y = 3-xa, p = 0 or 1, pa = 0 or 1, pb = 0 or 1, q = 0 or 1, qa = 0 or 1, with the proviso that at unless q or qa is different from zero, B, Ba and Bb each independently represent a divalent linear or branched C1-C20 alkylene radical. compounds of formula (III): embedded image saturated or unsaturated hydrocarbon chain, linear or branched, optionally containing one or more heteroatoms, optionally interrupted or substituted by one or more groups selected from ether, ester, amine, amide, carboxyl, hydroxyl and carbonyl groups, e = 2 or 3; 3-e; g = 0 or 1; j = 0 or 1; E and Ea each independently represent a divalent linear or branched C1 to C20 alkylene radical; R26 and R27 each independently represent hydrogen or a linear or branched saturated or unsaturated hydrocarbon chain; , optionally containing one or more heteroatoms, optionally interrupted or substituted with one or more ether groups, C1-C20 alcohol ester, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl, or an aromatic ring, heterocyclic or not optionally substituted with one or more C 1 -C 20 alcohol ester, amine, amide, carboxyl, hydroxyl, carbonyl or acyl groups, R 26 or R 27 preferably denoting a hydrogen atom, i is an integer ranging from 0 to 4 , h is 0 or 1, the R28 group (s) independently represent hydrogen or a saturated or unsaturated hydrocarbon chain, linear or branched, preferably Cl-Clo, optionally containing one or more heteroatoms, optionally interrupted or substituted by a or a plurality of ether, C1-C20 alcohol ester, amine, carboxyl, C6-C30 aryl, hydroxyl or carbonyl groups, or an aromatic ring, heterocyclic or non-heterocyclic, optionally substituted with one or more C-alcohol ester groups; C20, amine, amide, carboxyl, hydroxyl, carbonyl or acyl. 3. Composition according to any one of the preceding claims, characterized in that the alkoxysilane (s) is (are) of the following formula (I): ## STR1 ## in which: R1 and R2, independently of one another are selected from hydrogen and ethyl, propyl and aminoethyl; R3 is selected from ethyl, propyl and methylphenethyl; R4, R5 and R6 independently of one another are selected from methyl, methoxy, ethoxy. 4. Composition according to any one of the preceding claims, characterized in that the alkoxysilane (s) is (are) chosen from alkoxysilanes containing one or more amine functions, preferably primary and / or secondary. 5. Composition according to any one of the preceding claims, characterized in that the alkoxysilane (s) is (are) chosen from 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N- (2-aminoethyl) -3- aminopropyltriethoxysilane, and 3- (2-aminoethylamino) propylmethyldiethoxysilane and preferably is 3-aminopropyl triethoxysilane. 6. Composition according to any one of the preceding claims, characterized in that the alkoxysilane (s) is (are) present in the composition in an amount ranging from 0.05% to 20%, in particular 0.1%. at 10%, preferably from 0.2 to 5%, relative to the total weight of the composition. 7- Composition according to any one of the preceding claims, characterized in that the starch or starches are selected from starches of maize, rice, cassava, barley, potato, wheat, sorghum, peas. 15 8- Composition according to any one of the preceding claims, characterized in that the acid or the acid derivative is chosen from inorganic or organic acids, their salts, organic acid chlorides, acid anhydrides. organic esters of organic acids inorganic oxychlorides. 20 9. Composition according to any one of the preceding claims, characterized in that the starches modified with an acid derivative are chosen from starch phosphates and starch acetates. 25 10. Composition according to any one of claims 1 to 9 wherein the starch or starches modified with an acid derivative represent from 0.01% to 10% by weight, preferably from 0.1% to 10%. by weight and more particularly from 0.5 to 5% by weight relative to the total weight of the composition. 30 11. Process for the non-therapeutic cosmetic treatment of keratinous substances, in particular keratinous fibers, and in particular human keratinous fibers such as the hair, comprising the application on said materials of a composition as described in any one of the claims. 1-10. Process according to claim 11, wherein the composition is not rinsed after application. The method of claim 11 wherein the composition is rinsed after application. Process according to claims 11 to 13, wherein the application of the composition is carried out in the presence of heating between 40 and 220 ° C. 15. Use of a composition as defined according to one of claims 1 to 10 for the care and / or shaping of keratin materials, especially keratinous fibers, and in particular human keratinous fibers such as hair .